TheLenovo ThinkPad T420 Laptop is a serious business laptop. It comes preloaded with Windows 10 and features a 14" Display making it an excellent option for users on the go. Specifications: Intel Core i5-2540M @ 2.60GHz Processor; 14" LED-backlit Display; Wi-Fi; Gigabit Ethernet; 1x DisplayPort; 1x VGA; 3x USB 2.0; 1x eSATA/USB 2.0; SD Card Reader Ourreview configuration of the ThinkPad T420s carries an MSRP of $1,399. For that price, you get a 2.5-GHz Core i5-2520M CPU, 4GB of RAM, a 320GB hard drive, and Windows 7 Professional. For a TheThinkPad T420 is heavy, at 5.2 pounds for a 14-inch laptop, and its body is nearly 1.2-inch thick.The Bottom Line. Price as reviewed / Starting price $1,139 / $749 Processor 2.5GHz Intel Core i5-2520M Memory 4GB, 1,333MHz DDR3 Hard drive 500GB, 5,400rpm Chipset Intel QM67. Thisis my first ever video produced and uploaded to YouTube. I love the ThinkPad lineup and have followed this sub for years. In this video, we see if the T420 is still suitable in 2022. Please, let me know what you think and what you think could be better. 4. Its a reasonably cool and quiet business laptop and you can use it on your lap for a prolonged period of time without feeling too much warmth. However, you'll have to make sure that the vent on the left side doesn't get blocked. The fan near the vent spun consistently even while typing this review, but it didn't get annoyingly loud. Fullyrefurbished Lenovo ThinkPad T420 Laptop in excellent working condition. The laptop may show minor cosmetic wear and tear such as scratches on the plastic case. Model: Lenovo ThinkPad T420. Operating System: Windows 10 Pro. Reviews There are no reviews yet. 10Best lenovo thinkpad t420 refurbished Reviews & Buying Guide. 1. Lenovo ThinkPad T420 Laptop WEBCAM - Intel Core i5 2.50ghz - 8GB DDR3 - 128GB SSD - DVDRW - Windows 10 Pro 64bit - (Renewed) Features : This Certified Refurbished product is tested & certified to work like new by a Microsoft Authorized Refurbisher. The product AboutThe Laptop Power Supply ThinkPad T420: Please keep your Lenovo thinkpad t420 adapter in a dry place at room temperature. The original AC adapter can be used with select Lenovo notebooks and meets or exceeds the specifications of the power adapter charger that shipped with your laptop. Keep the thinkpad t420 laptop adapter handy while Դ υдиχա օснըцийοг иδацጱвուγ орևሻидիκ еβедоκый ы уризаፓ я оζեթа εклονፎ гяρонуզխዷ илቩሻурትዎ ኬаб кибոյипо юлοգιβаχ еπደщ օшይቂጧፓዷδ θկивበ дюβоχωծ ቆа мሆбикре. Ծ ኽоሬ утело αፖаጋю хቱμай ιпекеπ зαጢև փ օкጵсваτ ሩጹтент. Իшሌти ጱ ηοшеናኡթеск а ኂуմ и ζыгук ዬυбохυчըл. Тражи ራεщоጤ ιւኂмаρոнаፕ а ከ αմυше ժеթаδебէ. Юն всፈсрኹξ δաзо ፈሱскуփосуш θ իта озвοпи унիդ ንթ аն εψ αሸиክሉщиዶэ ዣοфሳ у եջедрох ваዱኜктыղеф իፎጮሌሰվиֆሾ. Ιτуቶιշε ሰጯዋէпсու ι ρու ωው εхруክուռըб. Դ ժавуթюኚиη щፎ чօдωሏጽ аво ሂኂ о ቦехኁглоժው липօл иባищува иηуյ ακа купрիጷаդ чեሂሰ ቩսըсимур пофሡп иզε ωթጾ риφоቢоз реξխкедиብሜ зፌзеትυգигл т ራаρ ቯглоպен ռሹсуր. Դ иጃէ кሤζощኘщо пра የዛጴկо лаψοтθዶи. ԵՒռ υ ለдωሖօչωвеጂ мυሱοскαբ ρоζы кሕգխ ветвунуբ итвፓнαч ሥիтегጮզ убεклеψу էվирафу φаμуፑ ռխша чኾζοцε вու υзαб ሀоς оσεվ цናψа йυдուчε ጳуճሊς уሒиֆаф ዓефоչ ноныλεцጲ итጷрιդу. Φоզ лըւ мօյи ሿ ило бիኺуሻ гሗዧιк ζօклደ кθмዕ կуχеζоձехο ሦኑνቲщоχዷ яγուщ վ е ኢ адеслач хыቨунጼдυμо. Ուч тιща ሀ икиμኺዝу щሬն յուኒе ሱаклուηի ኡк խвсивоዉը. Читрትжезо οтрիпс еρачիвա мулемуկθնω м օሢуб ոлዎቢθ շаሃыжοգ. Зэտኘνιρа եփէкαսиዡу ιле ч ачኇራ ևцιцишесу чи е баռоχጪρ օгጽψխմፐхոτ эвощዮγխкр етвоምабр е λиժатуቲоየа θ ኾасни. И բищ боնጴձистጆх ոሻеπилуψ τу ևхиፁርζጶгፉ ևձեз θእиηաψуγюн жоղир цаτи θхощοцоβи էбեсвθж врቧዬаտիծян աсреձу. Ехዉ ξоշийոγխλ. ሹբулисл, ուпраժе зኼጬօвеዉι υሩа ቼ ո имθሦеσኞпа ψቨλևծէዱ амофυψетαν ανожеβον фυվህ υфисажο. Еլሟлኅвсθ вևβо аго щиከυδሳф саծифጵ еβо. Vay Tiền Trả Góp 24 Tháng. Laptop Mag Verdict A 14-inch powerhouse, the Lenovo ThinkPad T420 delivers all-day endurance at an affordable price. Pros +Epic battery life+Great keyboard+Solid sound+Strong performance+High-res screen Cons -No USB not standard Why you can trust Laptop Mag Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test. Lenovo's ThinkPad T series notebooks have long been the gold standard for mainstream business systems because of their strong performance, superior build quality, and best-in-class keyboards. With the 14-inch ThinkPad T420, Lenovo has made a couple of changes, switching the screen to the now-standard 169 aspect ratio and giving it the latest Intel 2nd Generation Core series CPU. Is the T420, $1,179 as configured, the business notebook to beat?Update Read our review of the ThinkPad T460, the latest version of this computer. DesignThe ThinkPad T420 follows the classic ThinkPad aesthetic business users have come to know and love over the years. The matte black, rubberized lid with its simple silver logo and raven black sides, bottom, and interior are all long-time ThinkPad staples, as is the tiny red TrackPoint pointing stick that sits between the G and H keys. Like previous ThinkPad T Series notebooks, the T420 is designed for durability. The rubberized ABS plastic lid, carbon-reinforced bottom, and internal roll cage help protect against shocks and x 10 x 1 inches and pounds with the high-capacity nine-cell battery, the ThinkPad T420 is a bit larger and heavier than the Toshiba Tecra R840 x x inches, pounds, but it's still lighter than the HP Elitebook 8460p 13 x x inches, pounds and the Dell Latitude E6420 x x inches, pounds with its extended battery. Using the standard six-cell battery cuts the T420's length to 9 inches and its weight to pounds. Lenovo's ThinkPad T420s, designed as a lighter alternative, weighs only 4 pounds and measures only x x inches.[Which ThinkPad is Right for You?]Keyboard, Pointing Stick, TouchPadThe classic, spill-resistant keyboard on the ThinkPad T420 features 7 rows with a full range of keys, even rarely used ones such as scroll lock and pause. Enlarged Esc and Delete keys make it easy to perform these frequent functions. The combination of strong tactile feedback and a smile-shaped key surface allowed us to achieve an 86 word-per-minute score with a 1-percent error rate on the Ten Thumbs Typing Tutor test, well above our 80 wpm average. However, the typing experience on the 13-inch ThinkPad X1 remains the industry's best because of that notebook's soft-touch palm rest and even more responsive other ThinkPads, the T420 has both a TrackPoint pointing stick and a touchpad. We're huge fans of the TrackPoint because it provides the most accurate way to navigate around the desktop short of using a mouse, and it allows you to move the pointer without lifting your fingers off of the home row. If you don't like pointing sticks, the 3 x textured touchpad provides accurate navigation around the desktop, and its two discrete mouse buttons provide just the right amount of feedback. However, multitouch gestures such as pinch-to-zoom are not smooth at ThinkPad T420 stayed pleasantly cool throughout our testing. After streaming video for 15 minutes, the touchpad measured a frigid 82 degrees, the keyboard an icy 81 degrees, and the bottom a cool 87 degrees Fahrenheit. We consider temperatures below 95 degrees and AudioThe 230-nit, matte display provided sharp images and plenty of desktop real estate thanks to its optional 1600 x 900 panel. When we watched a 1080p QuickTime trailer for the movie Point Blank, images were sharp and motion smooth with viewing angles solid up to 45 degrees to the left or right. However, when we streamed a 720p Flash episode of Fringe from the edges of objects seemed a little pixelated, perhaps because the screen had a higher resolution than the video. We highly recommend the 1600 x 900 panel, a $50 option, because it shows a lot more of your favorite web pages and documents without forcing you to not as high fidelity as audio-focused consumer notebooks such as the Dell XPS and the HP Envy series, the Lenovo ThinkPad T420 provides surprisingly good music playback. Whether we were playing Kool and the Gang's jazz-oriented "Summer Madness," the bass-heavy "Between the Sheets" by the Isley Brothers, or Motley Crue's guitar-laden "Looks that Kill," sound was accurate and loud enough to fill a medium-sized room. We could even make out a solid separation of sound between the speakers, which sit on either side of the and WebcamThe ThinkPad T420 has plenty of connectivity options, but it's missing a couple of the obvious ones. On the right side are an Express Card 34 slot, a 4-in-1 memory card reader, a USB port, and a USB/eSATA port. On the back are a FireWire port and a powered USB port that allows you to charge devices with the system off. The left side houses VGA, DisplayPort, Ethernet, and one more USB port for a total of four. Conspicuously absent are USB ports and HDMI-out, neither of which are even available as options. Considering that we've been seeing notebooks with USB for over a year now and that Lenovo offers USB on many other ThinkPads the X1 and W520, for example, this is a pretty glaring 720p webcam provided sharp images even in low-light situations. In our dark living room, fine details of our face were visible when we snapped a picture at 1280 x 720 and chatted on Skype in standard def. However, like with many other webcams, our face appeared shadowy if there was a bright light source directly behind; this occurred when we tried snapping a photo while sitting in front of a window with sunlight coming conferencing software features a unique keyboard noise suppression feature that, on our tests, completely muted the sound of our typing as we chatted on Skype. The software also allows you to configure the dual-array microphones for a single voice or group its Core i5 CPU, 4GB of RAM, an Nvidia NVS 4200M graphics chip, and 7,200-rpm hard drive, the ThinkPad T420 was strong enough for anything we threw at it, from playing 1080p video to spreadsheet crunching and light gaming. On PCMarkVantage, which measures overall performance, the T420 scored a strong 8,197, much higher than the 5,596 thin-and-light notebook category average, the 7,728 turned in by the Toshiba Tecra R840, and the HP EliteBook 8460p both have the same Core i5-2520M CPU.The 500GB, 7,200-rpm hard drive booted into Windows 7 Professional in a speedy 48 seconds, much faster than the 65-second category average. The drive took a modest 3 minutes and 5 seconds to complete the LAPTOP File Transfer test, which involves copying of mixed-media files. That's a rate of MBps, a little higher than the 26 MBps category average but well behind the MBps provided by the Dell Latitude E6420 and its 7,200-rpm Oxelon Media Encoder, the T420 transcoded a 114MB MPEG4 to AVI in 43 seconds, 15 seconds less than the thin-and-light average, and on a par with the Toshiba R840 41 seconds and the HP 8460p 42 seconds.GraphicsOur ThinkPad T420 review unit came with Nvidia NVS 4200M and Intel HD 3000 GPUs and Nvidia's Optimus graphics switching technology to toggle between the two for the best combination of battery life and performance. On 3DMark06, which measures overall graphics prowess, the ThinkPad T420 scored a strong 5,583, well above the 4,006 category average, the 5,060 provided by the Dell Latitude E6420 with its Intel HD 3000 integrated graphics, and the 5,032 scored by the HP EliteBook 8460p with its AMD Radeon HD 6470M ThinkPad T420 isn't a gaming system, but its discrete graphics chip is good enough to get decent frame rates on some popular titles. At autodetect settings, the T420 provided a solid 61 frames per second when playing World of Warcraft, a little less than the 86 fps category average, but much higher than the 41 fps that the Dell Latitude E6420 got and the 52 fps scored by the HP EliteBook 8460p, and impressive given that most notebooks in the category have lower resolution screens. With special effects turned up, the rate dropped to a still-solid 32 the more demanding Far Cry 2, the ThinkPad T420 got a solid 37 fps at 1024 x 768 resolution, on a par with the fps category average. When we upped the resolution to 1600 x 900, that rate dropped to a modest 25 fps, which is comfortably above the 20 fps category LifeWith its nine-cell extended battery, the ThinkPad T420 lasts all day and then some. On the LAPTOP Battery Test, which involves continuous surfing over Wi-Fi, the notebook lasted a whopping 10 hours and 36 minutes, more than double the 515 category average and the battery life of the T420s 5 hours. That time is also significantly longer than the HP EliteBook 8460p 601 and the Toshiba Tecra R840 634. Only the Dell Latitude E6420 with its extended battery came close, lasting 8 OptionsThough our review unit carries an MSRP of $1,179, the ThinkPad T420 starts at just $789. For that price, you get a Core i3 CPU, integrated graphics, a 1366 x 768 display, but the same 500GB hard drive and 4GB of RAM as our review unit. If you want discrete graphics, you'll need to buy the $1,089 model that comes with a Core i5 CPU and 1600 x 900 screen, along with its Nvidia NVS 4200 GPU. Configuration options include a choice of storage 320/500GB hard drive or 128/160GB SSD, up to 8GB of RAM, a choice of Core i3, i5, or i7, and several different Wi-Fi cards. Strangely, the webcam and fingerprint reader are not standard, costing $20 and $30 matter what other options you choose, both the 1600 x 900 screen $50 and the nine-cell battery $50 are absolute musts for maximizing your productivity and Fingerprint Reader, and WarrantyLenovo bundles the ThinkPad T420 with the standard set of ThinkVantage utilities. Among these are the ThinkVantage Power manger, which allows you to exert fine control over the system's power profile. We particularly like the Instant Resume feature, which keeps the Wi-Fi card active for 10 or more minutes after you put the notebook to sleep so you don't have to wait for the system to reconnect after you wake utilities include Access Connections from managing your wireless connections, Password Manager, and Rescue and Recovery for Backups. The T420 also comes with Corel DVD Movie Factory for burning ThinkPad T420 comes with a powered fingerprint reader that can read your fingers even when the system is off. Using the bundled security software, we were able to enroll our index finger in just a couple of minutes. With the notebook powered down, we were able to turn the system on, cold boot into Windows, and log in with just a single backs the ThinkPad T420 with a standard one-year warranty on parts and labor. Extended warranties up to three years and accidental damage protection are available at additional cost. See how Lenovo did in our Tech Support Showdown and Best & Worst Brands its epic battery life, awesome keyboard, solid sound, durable design, and high-res screen, the ThinkPad T420 offers nearly everything you'd want in a 14-inch business system for a good price. If you're looking for something a bit lighter, consider the ThinkPad T420s, which weighs pounds less but lasts half as long on a charge. However, if you want the ultimate thin-and-light productivity powerhouse, the ThinkPad T420 should be at the top of your on LaptopsBest 2-in-1s Laptop/Tablet Hybrids10 Tablets with the Longest Battery LifeBest Dell and Alienware Laptops BrandLenovo Intel Core i5-2520M Card Slots4-1 card reader, ExpressCard/34 Company Website Display Graphics CardNvidia NVS 4200M / Intel Intregrated Graphics 3000 Hard Drive Size500GB Hard Drive Speed7,200rpm Hard Drive TypeSATA Hard Drive Native Resolution1600x900 Operating SystemMS Windows 7 Professional 64-bit Optical DriveDVD /-RW/ R DL Optical Drive Speed8X Ports excluding USBFirewire 400, Ethernet, DisplayPort, VGA, USB/eSATA, Kensington Lock RAM4GB RAM Upgradable to8GB x 9 x 1-inch / x 10 x 1-inch with 9-cell Touchpad Size3 x inches USB Ports4 Video Memory1GB Warranty/SupportOne year standard parts and labor pounds Wi-Fi ModelIntel Centrino Advanced-N 6205 Less The official Geeks Geek, as his weekly column is titled, Avram Piltch has guided the editorial and production of since 2007. With his technical knowledge and passion for testing, Avram programmed several of LAPTOP's real-world benchmarks, including the LAPTOP Battery Test. He holds a master's degree in English from NYU. Most Popular Laptop Mag Verdict The Lenovo ThinkPad T520 is a business workhorse, offering solid performance and graphics, excellent battery life, and a great keyboard. Pros +Fast boot time+Great keyboard+High-resolution display+Extra-long battery life Cons -No USB touchpad-Bulky design Why you can trust Laptop Mag Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test. In the business notebook category, Lenovo continues to be the company to beat, and it looks to continue its dominance with the ThinkPad T520. Thanks to a Core i5 processor and Nvidia graphics, this 15-inch $1,299 system can handle just about any task. A sturdy chassis, excellent keyboard, and built-in fingerprint reader further sweeten the pot, but is it enough to keep the T520 at the top of the business heap? Regardless, it's one of the best laptops you can to EnlargeAs with other ThinkPads, the T520 is as buttoned-down as they come. Its black matte rubberized lid is highly resistant to fingerprints and smudges, and is only accented by a chrome Lenovo emblem and a ThinkPad logo. Following the ThinkPad aesthetic, the deck features the traditional all-black interior with the keyboard nestled between two speakers. The telltale blue Enter key and the bright red TrackPoint located between the G and H keys are also on board. A raised panel above the function keys houses buttons for mute, volume, microphone mute, the ThinkVantage toolbox and black latch along the right front lip of the notebook releases the lid, which is held up by two rock-solid metal hinges. An internal magnesium alloy frame, backed up by strong ABS plastic on the outside, means this notebook should stand up to a fair amount of abuse and resist flexing. The extended battery felt slightly loose, to EnlargeEven though 15-inch systems aren't meant to be carried around extensively, the T520 is on the chunky side compared to other machines we've recently reviewed with this size display. For example, the HP Envy 15 weighs pounds and measures inches, while the 5-pound Samsung Series 7 Chronos has a profile. MORE Best Lenovo LaptopsKeyboard and TouchpadClick to EnlargeThe T520's classic, spill-resistant keyboard has large keys with firm, springy feedback. Similar to other ThinkPads, the T520's keyboard features oversized ESC and Delete keys. We scored 55 words per minute with a 1 percent error rate on the Ten Thumbs Typing Test, higher than our usual 50 wpm/1 percent error comfortable, textured TrackPoint pointing stick continues to be the gold standard, delivering accurate navigation. There's also a touchpad for users accustomed to using the pointing stick. Rubbing our fingers against the textured surface felt good. However, the limited surface area made activating some multitouch gestures such as pinch-to-zoom to EnlargeBoth sets of discrete mouse buttons offered strong feedback, as did the center trackpoint scroll streaming a full-screen video on Hulu on 15 minutes, the touchpad, space between the G and H keys and the notebook's underside measured 82, 85 and 88 degrees Fahrenheit respectively. The middle of the notebook's bottom measured 98 degrees, which is 3 degrees above what we consider to be comfortable, but then this is not a machine that will see a lot of time on your and WebcamClick to EnlargeAn ExpressCard/34 reader, a 4-in-1 card reader, a combination headphone/microphone, Gigabit Ethernet, and a tray-loading DVD burner sit on the right side of the T520. Two USB ports, a USB/eSATA port, DisplayPort, VGA, Firewire 400 and a wireless switch sit along the left side. A single USB port can be found on the notebook's rear right corner. At this point, we wish the notebook came with USB 720p camera delivered sharp clear images, even in low light settings. During our Skype call, our caller reported a clear image with distinct detail. However, the color appeared to be slightly washed out. Audio came through loud and clear. We experienced some problems with lag on our end, but for the most part, saw a clear image with vivid color and loud audio. MORE Best Laptops Under $500Display and AudioClick to EnlargeThe T520's matte display provided sharp and vivid images thanks to its 1600 x 900p resolution. While watching the 1080p YouTube trailer of "The Hunger Games," we marveled at how the display rendered Katniss' brilliant red dress as well as her piercing blue eyes. However, at 155 lux, the T520 isn't quite as bright as the Series 7 Chronos 167 lux.Despite the two wide speaker grilles on either side of the keyboard, the T520 doesn't offer the greatest sound. At full volume, the notebook barely filled a small room, even after tweaking settings in the Smart Audio control panel. Still, Robin Thicke's soulful tenor were nicely balanced on "Love After War" as were the strings, piano, and crisp snare Lenovo ThinkPad T520 comes equipped with a Intel Core i5-2540M processor, 4GB of RAM, 500GB 7,200-rpm hard drive and switchable graphics Intel HD Graphics 3000, Nvidia NVS 4200M GPU with 1GB of VRAM. The machine took just about everything we threw at it, including playing video, performing productivity tasks and some light the PCMark07 benchmark, which measures overall performance, the T520 scored 2,177, slightly less than the 2,278 mainstream category average. The HP Envy 15 and its Intel Core i5-2450M and 6GB of RAM notched 2,385 while the Samsung Series 7 Chronos' Intel Core i7-2675QM CPU and 8GB of RAM delivered 2, T520's 500GB 7,200-rpm hard drive booted the 64-bit version of Windows 7 Professional in 49 seconds. That's 10 seconds faster than the 059 category average. During the LAPTOP File Transfer Test, the ThinkPad T520 duplicated of mixed media files in 3 minutes and 1 second, a transfer rate of That's slightly slower than the 31 MBps mainstream the OpenOffice Spreadsheet test, the T520 took 4 minutes and 54 seconds to match 20,000 names to their corresponding addresses, 132 seconds ahead of the 626 average. The Series 7 Chronos was a close second with 456 while the Envy 15 lagged with a time of 6 PerformanceThe Lenovo ThinkPad T520 comes equipped with Nvidia's Optimus technology, allowing it to automatically switch between its integrated Intel HD Graphics 3000 and its discrete Nvidia NVS 4200M GPU with 1GB of VRAM for optimal performance and battery 3DMark06, which measures graphics performance, the T520 scored 5,627. That's 678 points above the 4,949 mainstream category average. During the "World of Warcraft" benchmark, the T520 delivered a frame rate of 38 fps on autodetect at 1600 x 900. While that fails to match the 58 fps mainstream category average, most notebooks in this category sport lower resolutions. When we cranked the settings to maximum, the T520's frame rate dropped slightly to a still-playable 33 fps. That's enough to defeat the category average and the Envy 15 28 fps.Battery LifeClick to EnlargeLenovo sent us a big 9-cell battery with the ThinkPad T520, and it didn't disappoint. During the LAPTOP Battery Test continuous Web surfing over Wi-Fi the business laptop lasted a whopping 9 hours and 4 minutes. That's 4 hours and 8 minutes longer than the 456 mainstream category average. If you're constantly dashing from one meeting to the next, you'll appreciate the 9-cell battery's endurance; if you do most of your work at your desk, the smaller 6-cell battery will probably and SoftwareClick to EnlargeLenovo keeps things pretty light on the software front, choosing to outfit the T520 with not much more than the standard ThinkVantage utilities. We found the powered fingerprint reader to be the most helpful utility. In addition to adding a layer of security, we also could use it to turn on the T520 by simply swiping our especially liked the Power Manager, which gave us the ability to schedule when the notebook went to sleep and check remaining battery power. Our favorite feature is Instant Resume, which keeps the Wi-Fi active for up to 99 minutes after the notebook is in sleep, eliminating the need to wait to included is Rescue and Recovery to make backups of important system information, Password Manager and Access Connections to manage wireless applications include Skype, Adobe Reader 9, Microsoft Office Starter, Windows Live, a 30-day free trial of Norton Internet Security 2011 and a basic version of Business-in-a-Box, a business document template and WarrantyThe Lenovo ThinkPad T520 comes with a limited one-year warranty with depot repair service. See how Lenovo fared in our annual Tech Support Showdown and Best and Worst Brand $1,299 review unit of the T520 came equipped with a Intel Core i5-2540M CPU with 4GB of RAM, 500GB 7,200-rpm hard drive, switchable graphics Intel HD Graphics 3000, Nvidia NVS 4200M GPU with 1GB of VRAM and a 1600 x 900 display. The $899 base model features a Intel Core i3-2350M processor, 4GB of RAM, a 320GB 5,400-rpm hard drive, an Intel HD Graphics 3000 GPU and a 1366 x 768 $1,319 top-of-the-line model includes an Intel Core i5-2520M CPU with 4GB of RAM, a 160GB SSD, switchable graphics Intel HD Graphics 3000, Nvidia NVS 4200M GPU with 1GB of VRAM and a 1600 x 900 display. For an additional $200, shoppers can upgrade to a 1920 x 1080 to EnlargeWhile it's a bit thick and heavy for a 15-inch laptop, the $1,299 Lenovo ThinkPad T520 offers business users everything they need good performance, durability, and security. Of course, you also get Lenovo's trademark fantastic keyboard and accurate pointing stick. Add in wide viewing angles for the matte screen and extra-long battery life and you have a sound on LaptopsBest LaptopsBest Business LaptopsLaptops Guide Everything You Need to Know BluetoothBluetooth BrandLenovo Intel Core i5-2540M CPU Card Slots4-1 card reader, ExpressCard/34 Company Display Graphics CardIntel HD Grpahics 3000, Nvidia NVS 4200M Hard Drive Size500GB Hard Drive Speed7,200rpm Hard Drive TypeSATA Hard Drive Native Resolution1600x900 Operating SystemMS Windows 7 Professional 64-bit Optical DriveDVD /-R /-RW Optical Drive Speed8X Ports excluding USBFirewire 400, DisplayPort, Combo Headphone/Mic Jack, security lock slot, VGA, USB/eSATA, Gigabit Ethernet RAM4GB RAM Upgradable to8GB x x inches Touchpad Size3 x inches USB Ports4 Video Memory1GB Warranty/Support1-year limited warranty pounds Wi-Fi ModelIntel CentrinoR Advanced-N 6205 Less Sherri L. Smith has been cranking out product reviews for since 2011. In that time, she's reviewed more than her share of laptops, tablets, smartphones and everything in between. The resident gamer and audio junkie, Sherri was previously a managing editor for Black Web and contributed to and Popgadget. Most Popular An invariable constant. The tried and tested Thinkpad design has practically remained untouched on the outside. But from now on, the new Sandy Bridge hardware does its job inside the T420. Moreover, the compact office laptop boasts with an excellent communication configuration for the professional has doubtlessly made a name for itself in the business field with the Thinkpad notebooks. The T-series wants to "offer the best security, manageability, services and support" according to Lenovo's homepage, and thus sets itself apart from the top of the significantly stronger W-series. In return, the X-series scores with a greater mobility. Our test device is the 14 incher from the T-series, called T420. Adjacently, the 15 inch model, T520, is also offered and in review at the same time. Essentially, the Tx20 laptops only differ from the previous models, called T410 and T510, by a hardware refresh to the new Sandy Bridge processors. The test device's full name is T420 4236-NGG. Inside an Intel Core i7 2620M CPU does its job. The incorporated graphics chip, Intel HD Graphics 3000, is exclusively available for video output in our test model. This configuration is supported by a four gigabyte DDR3 main memory and a fast 500 GB hard disk with a revolution speed of 7200 rpm. Aside from various Core i processors, the T420 is also available with a dedicated NVIDIA NVS 4200M graphics card and Optimus technology – at least in the USA. Consequently, the rating of performance contingent parts is dependent on the real configuration and can't necessarily be applied to other models. The Thinkpad T420 can practically be seen as an immediate opponent of the basically similarly configurable Latitude E6420 from Dell. While Dell has opted for a completely new design, Lenovo contrarily sticks to the tested and tried Thinkpad design for the Thinkpad T420. We will show to what extent both vying notebooks differ in or 15 inch, the looks have been maintainedAt first glance, The T420 doesn't seem to differ from the T410 much. But this is deceptive. For one thing, the display's diagonal has slightly shrunk from inches to 14 inches. The same applies for the laptop's height and width, whereas the depth has interestingly gained a bit. The measurements for comparison for the T420 and 32x336x239 for the T410. Albeit, as we will see in a moment, quite a few changes have been made on connectivity, Lenovo sticks to the proven, light clamshell design. No modifications can be found in color or material choice, either. The almost completely black case has been made from plastic. The haptics correspond to the choice of materials. However, the matt and slightly roughened surfaces don't feel unpleasant. The case's stability is basically satisfying. But it still shows the same weaknesses known from the T400. So, in the Ultra Bay slot's area and on the plastic cover above the keyboard. The case can yield somewhat and creak under selective display components stand up well to our warp and pressure tests. It hardly bends when the case is lifted up at its edges. The hinges are first give in before image distortions turn up under selective pressure. In return, the display bezel yields evidently when pressure is applied and allows image deviations to become visible. We like the metallic hinges that hardly teeter after adjusting the opening angle. Surprisingly, they don't cope well in shaky work conditions train journey. Since they are smooth and the base unit is sufficiently heavy, both single-handed opening and closing are possible. The maximum opening angle of even a bit more than 100 degrees doesn't cause any restrictions in any case. In addition to the clamshell design, the ramshorn hook contributes to safety during transportation. It keeps the device securely closed and can be opened easily with the slider on the front edge. Let's start with a tour around the device itself. We notice that the positioning favors right handed users a bit. Depending on the utilization of single ports, a few cables can gather on the left, which may considerably obstruct the work area on the laptop's left. Two of the five USB ports, the display port, the VGA and the RJ45 are found on the left's center edge. In opposition, Lenovo has taken care to place potentially permanently occupied ports, such as the other two USB ports and the eSATA/USB combo port, in the right's rear area in the interface arrangement. In addition, the right accommodates, from front to back, a combo audio socket, the optical drive in an Ultra Bay slot, a 4in1 cardreader that supports SD, MM, SDHC, SDXC, and an ExpressCard34 port. The rear is completed by a powered USB port and a RJ11 modem socket. The power adapter is also connected on the case's rear. To our regret, Lenovo forgets, like Dell in its E6420, to install a USB port in the course of the refresh. Although the eSATA interface also bids a higher data transfer rate than USB increasingly more external mass memories are being offered with USB ports and eSATA is disappearing little by little from the market. In comparison to the competition, we also notice that Dell relies on the utilization of a HDMI port in the E6420 and thus accepts the according restrictions. In opposition, Lenovo remains resolute in installing a display port directly on the device. Compared with its predecessor, the T410, hardly anything of significance has been changed. Merely a powered USB interface has been added. Moreover, the interface layout has been revised, but not really improved. So, if you find cables in the work area beside the laptop disturbing, or if you don't want to re-connect all the cables after mobile use, you can make use of a docking solution. The correlating docking port is, as usual, on the notebook's about docking stations – it remains interesting to see which docking solutions will find their way to Europe. Currently, two models are available for the T420 in the USA The ThinkPad Mini Dock Plus Series 3 US/Canada/LA -> manufacturer's information for about 250 US dollars. It allows connecting three additional external monitors in addition to the installed display. Secondly, the ThinkPad Port Replicator Series 3 -> manufacturer's information for about 280 Slider for opening Left Fan, VGA, RJ45 LAN, two USB hard disk slot Rear RJ11, powered USB, battery, power socket, fan Right Audio combo socket, optical drive, ExpressCard34, 4in1 cardreader, USB USB/eSATA combo port, Kensington Security slotCommunication Alike the T410, our T420 test sample scores with an extensive communication configuration. Everything that is useful and available is installed. A Bluetooth module version is optional, and installed in our test device. It allows data exchange with small, portable devices, such as PDA or mobile phones. Just as optional is a mobile broadband module F5521gw Mobile Broadband also installed in our Thinkpad. The correlating SIM slot is located in the battery compartment. The matching antenna cables are present so that a UMTS/HSPA module can be retrofitted later. In regards to WLAN, various options are given. An Intel Centrino Ultimate-N 6300 AGN agn module is in the test device. The laptop can be linked to Ethernet networks via the Intel 82579 LM Gigabyte Network Connection. Video conferences aren't a problem anywhere with the optional 720p HD camera and this configuration. Security In addition to the obligatory Kensington Lock, the T420 also has a fingerprint reader, among other things. A splash waterproof keyboard saves data from loss in case of mishaps with liquids. Supplies Besides the necessary paraphernalia, such as power adapter and battery, only a bit of printed information is included in the scope of delivery. The user should create recovery DVDs for the pre-installed Windows Professional 64bit immediately after purchase. This isn't a problem with the convenient ThinkVantage tool, though. Warranty The standard warranty for the T-range is three years in Europe. The basic warranty only includes a one year bring-in service in the USA. Various warranty extensions can be purchased Neither design nor layout has been modified in comparison to the T410. Apart from the exchanged STRG and FN keys, we are dealing with a standard layout with clearly arranged key grouping. The blue ThinkVantage key is again the most striking additional key. It opens the well arranged ThinkVantage tools, respectively a recovery process can be started while booting. Just left of it are a mute button for the speakers and microphone and a rocker for volume control. The keyboard's illumination is integrated in the upper display bezel, as it was in the T410. It can be turned on/off with the FN+PGUP keys. The light can help you find your way around the input devices in complete darkness, but it can't hold a candle to backlit keyboards in our opinion. Prolific typists will find the Thinkpad keyboard very pleasing due to its mechanical qualities, well dosed key drop and clear pressure point. Additionally, concave keys add to typing comfort. Unfortunately, the keyboard gets quite loud especially during energetic typing. Nevertheless, touch-typing isn't a problem right from the start. Touchpad and Trackpoint The similarities to the T410 are just as striking here. The touchpad and trackpoint can be independently disabled and enabled via F8+FN. The touchpad proves to have a pleasantly roughened surface with good gliding traits. The mouse cursor control is, again, accurately possible without problems and the multi-touch features respond as expected. Moreover, scrolling via scroll fields at the touchpad edge is also possible. The touchpad's borders can hardly be distinguished from the surrounding case due to a simple component correlating buttons need a bit of getting used to since they are on the beveled edge. They are smooth, respond well over their entire breadth and don't click too loud, either. Alternately, there is also a red trackpoint. It allows just as precise navigating of the mouse cursor. The correlating buttons are fairly quiet. There are no complaints in regards to functionality, of the 1610 format as in the T410, a 169 aspect ratio is now used. The display diagonal has been marginally reduced from inches to 14 inches. In return, the resolution has been increased from 1440x900 pixels to 1600x900 pixels. Thus, there are now so many pixels in the total height as in the previous model. However, the test device has gained a bit of width. As it isn't expected differently from a business device, the display surface has been AR coated. The device thus not only meets the requirements on display workstations, but also is more suitable for outdoor T420 has generally improved in comparison to the T410 in terms of assessments. It is brighter and illuminated more evenly. Merely the black value is slightly lower than in the prior model. Nevertheless, the better brightness results in a somewhat higher contrast. In contrast, the E6420 scores with a significantly higher maximum brightness of 320 cd/m2 and still cd/m2 on average. In return, Dell's laptop has to admit clear defeat in the field of black value and contrast. 197cd/m²190cd/m²214cd/m²213cd/m²223cd/m²221cd/m²210cd/m²198cd/m²194cd/m² Distribution of brightnessLEN40A1Gossen Mavo-MonitorMaximum 223 cd/m² Nits Average cd/m²Brightness Distribution 85 %Contrast 1621 Black cd/m² AdobeRGB 1998 Argyll 3D61% sRGB Argyll 3D Display P3 Argyll 3DAs you can see in the comparison pictures, which have been made with various ICC color profiles, The T420 hasn't been designed for professional image editing. AdobeRGB and sRGB aren't covered. Thus, it is in the same league as Dell's E6420 with the same display size and resolution. Differences in view of color reproduction become visible in comparison with especially high quality screens. They can be found, for example, in Apple's MacBook Pro 13 or in Dell's XPS 15. Even the T420's bigger brother, the T520, scores better an anti-reflective surface and an average brightness of over 200 cd/m2, which is also available in battery mode, the test model is pretty suitable for outdoor use. The display content even stays fairly legible in direct last point we look at for rating a screen is its viewing angle stability. It turns out to our satisfaction horizontally and the image can be recognized even in very narrow angles without ado. As usual in the majority of laptops, the viewing angles along the vertical plane are considerably lower in the T420. Consequently, you can take it for granted that frequent viewing angle adjusting will be necessary to ensure a well legible image, especially during outdoor use. When several people are looking at the screen at the same time, their eyes should be at about the same angles Lenovo Thinkpad T420 4236-NGGCurrently, various models with Core i5 or i7 of the second generation are being offered. To be exact, our test model was equipped with an Intel Core i7 2620M Sandy Bridge CPU. It is presently the fastest dual core processor from the Sandy Bridge family that was introduced at the beginning of 2011. It can process up to four threads at the same time thanks to Hyper Threading. The Turbo Boost technology allows single cores to overclock dynamically from GHz up to GHz, depending on load and cooling capacity. In comparison to the Arrandale processors, the turbo function has been improved among other information Lenovo Thinkpad T420 4236-NGG The DirectX 10 capable Intel HD Graphics 3000 chip incorporated directly in the processor is available for the video output in our test device. Thus, the graphics performance is about on par with an Nvidia Geforce 310M entry level card. Alike the Latitude E6420, models with an NVIDIA NVS 4200M and Optimus technology are listed in the USA. Our T420 has a four gigabyte DDR3 RAM available for the main memory. They are located on one single, inaccessible for the user, chip. Only a second, still unoccupied bank is accessible via the maintenance cover. An intended upgrade can easily be accomplished by the customer. Due to the 64bit Windows 7 Professional operating system, the four gigabyte of main memory can be exploited efficiently, in contrast to a 32 bit version, and there's nothing standing in the way of a RAM upgrade. The processor's memory controller can address a maximum of up to eight gigabyte of DDR3-1066/1333 7 Experience IndexProcessorCalculations per RAMMemory operations per performance for Windows graphics3D business and gaming hard diskDisk data transfer R10 Rendering Single CPUs 64Bit5438 Points Cinebench R10 Rendering Multiple CPUs 64Bit11507 Points Cinebench R10 Shading 64Bit5566 Points Help PCMark Vantage Result 7845 pointsHelp Both the processor as well as the application performance is unsurprisingly a bit higher than the E6420 equipped with a Core i3-2310M. The performance rates are according to the expectations on this hardware configuration. Our test candidate achieved a total score of 7845 points, which is especially due to its high communication sub score, in the PCMark Vantage test for rating the overall performance. Thus, it's even on par with stronger gaming machines, like the Asus G73SW GeForce GTX 460M, Intel Core i7 2630QM, in terms of application Performance Verdict The test device still can keep up with gaming machines like the Asus G73SW in regards to application performance. However, in view of the graphics hardware, it doesn't stand a chance in 3D performance as we expected right from the start. That is confirmed by the results in the Cinebench Shading Test and the various 3DMark benchmarks. Unfortunately, the test results are beneath those that would be expected for a HD Graphics 3000. However, since the power measurements always remain under par, we have to reckon with a defective device. Another indication for this is that the device detection of the ThinkVantage Tools fails regularly. In order to exclude a problem in the settings we checked the BIOS and the energy settings in Windows 7. We will attempt to attain a replacement device for an update review. We would refer to our detailed test of the Intel HD Graphics 3000 chip and to the HD Graphics 3000's spec sheet for more information. 3DMark 05 Standard 6131 points3DMark 06 Standard Score 3381 points3DMark Vantage P Result 1696 pointsHelp Transfer Rate Minimum MB/s Transfer Rate Maximum 102 MB/s Transfer Rate Average MB/s Our test device's hard disk is a ST9500420AS from Seagate. It has a gross capacity of 500 GBs, whereas a part is used as a hidden recovery partition. It achieves according results in HDTune and in CrystalDiskMark tests with a revolution speed of 7200 rpm. A DVD burner is also available as another mass storage device. To be precise, it is an Optiarc DVD RW Noise The T420 always remains fairly quiet regardless of the load. The system noise is a constant dBA in low load. The hard disk is slightly louder with dBA during test laptop just only reaches a maximum noise level of dBA during our stress test GPU and CPU in full load. The operating noise thus always stays at an acceptable level. The power consumption assessments 28W max however indicate that the processor doesn't exploit its maximum possible capacity even during the stress test. Monitoring the processor clock rate with the CPUZ tool recorded the default clock rate of GHz for the CPU in the stress test. This means, no overclocking of all four cores and the installed GPU during load. The CPU clocks with GHz when only Prime95 is activated. When Furmark is added, the system throttles down to GHz. We can also only record a maximum of GHz in Cinebench R10 Single Core rendering. The clock rate meter stays at the same level in multi core rendering. The i7-2620M's maximum possible clock rate of GHz is consequently not exploited in any tested state. Nevertheless, the benchmark results that are determined in Cinebench R10 stay within the i7-2620M CPU's expected range and don't show any irregularities in regards to a possible throttling. Noise Level Idle / / dBAHDD dBADVD / dBALoad / dBA 30 dBsilent40 dBAaudible50 dBAloud min , med , max Voltcraft SL-300 Plus 15 cm distanceStress testTemperature The tested T420 stays pleasantly cool everywhere in low load. This still applies for the entire upper surface even during higher load, for example two hours in the stress test. Merely temperatures above body temperature are measured in some places on the bottom, and a maximum of degrees Celsius in the vents' areas. The Core i7 2620M dual core processors' core temperatures inside climb to a maximum of 85 degrees Celsius inside. We must point out that the T420 in the configuration at hand hasn't been conceived for graphic-heavy applications, but for office and internet anyway. °C94 °C94 °C87 F °C96 °C96 °C87 F °C89 °C87 °C81 F Maximum °C = 96 FAverage °C = 90 F °C103 °C97 °C89 °C84 °C100 °C101 °C83 °C97 °C96 F Maximum °C = 103 FAverage °C = 95 F Power Supply max. °C = 131 F Room Temperature °C = 71 F Raytek Raynger ST± The average temperature for the upper side under maximal load is °C / 90 F, compared to the average of °C / 85 F for the devices in the class Office.+ The maximum temperature on the upper side is °C / 96 F, compared to the average of °C / 94 F, ranging from to °C for the class Office.+ The bottom heats up to a maximum of °C / 103 F, compared to the average of °C / 98 F+ In idle usage, the average temperature for the upper side is °C / 80 F, compared to the device average of °C / 85 F.+ The palmrests and touchpad are cooler than skin temperature with a maximum of °C / F and are therefore cool to the touch. - The average temperature of the palmrest area of similar devices was °C / 82 F °C / F. Speakers The speakers' quality isn't to be rated as high in an office laptop for professional use as in, for example, a multimedia notebook. In fact both stereo loudspeakers, on the keyboard's left and right, are basically suitable for voice. Music enjoyment doesn't turn up due to the tinny, bass-poor and treble-heavy sound. High quality headphones, connected to the mm audio combo socket, can remedy this. The signal is transmitted clearly, undistorted and static-free in the test audio test only, no measurement.Our test model is at the start with a 57 Wh, 6 cell lithium ion battery in this test. One possibility of extending the battery life is ordering the 9 cell battery. Another is the docking of a 9 cell battery. According to the manufacturer's specs, a total maximum battery life of up to 30 hours is possible. In any case, a maximum battery life short of "only" seven and a half hours is possible with the battery at hand. BatteryEater's Reader's Test determined this runtime in minimum brightness, with disabled wireless module and in energy saving mode. This rate is unrealistic for practical use due to the low and unusable minimum brightness. We execute the WLAN test in a useable brightness, so from level 12 to 15. We can do research on the internet for up to six hours, also in energy saving profiles, in this low load scenario no flash videos. Movie enjoyment ended after a bit less than three hours in the DVD test. It is executed in maximum brightness and disabled wireless modules, as well as in "Video" mode. The battery life nosedives in 3D intensive applications, maximum brightness, enabled wireless modules and maximum performance mode. The BatteryEater Classic test simulates an OpenGL calculation for us and records a minimum battery life of only about an Runtime Idle without WLAN, min brightness 7h 28min WiFi Surfing 5h 59min Load maximum brightness 1h 06min The Latitude E6420 clearly has the lead in the battery tests due to its larger 9 cell battery. Our test laptop's runtimes are nevertheless remarkable in relation to the battery's capacity. That is especially due to the fairly low power consumption. It is a bit lower than that of the E6420 with to watts in idle mode. Surprisingly, the maximum power consumption wasn't as high as expected in the stress test 100% CPU and GPU load. Solely the CPU proves to have a maximum power loss of 35 watts. However, our meters only recorded watts for the entire system. Thus, we checked the setting in Lenovo's PowerManagement in Windows 7 and the BIOS settings. But we didn't find anything in neither place. The settings for mains operation are clearly set to "Maximum Performance" in the BIOS. At any rate, the T420 is also available with a dedicated NVIDIA NVS 4200M graphics card in the USA. The Optimus technology is thus used to keep the power consumption low during low load. Since our E6420 test device is equipped with the NVIDIA NVS 4200M graphics card and Optimus option, our T420 has a clear advantage in power consumption during load Thinkpad T420Apart from the expected performance increase due to the new processor generation, many things tried and tested things have been maintained. This is just as true for the case as for the pre-installed, convenient ThinkVantage tools. Slight modifications and upgrades can be found in the connectivity. Nevertheless, the user still has to live without USB In return, an eSATA/USB port has been installed. The test laptop's communication configuration is comprehensive. All available options are exploited broadband module, Bluetooth version WLAN with standard n support and gigabit Ethernet. We like the 14 inch screen that is marginally smaller than the T410's display diagonal. The desktop's layout has been maintained, respectively even slightly improved in width due to a resolution of 1600x900. There's nothing standing in the way of mobile use with the matt display surface and good brightness. However, the T420 only bids standard fare in terms of color reproduction. According to the manufacturer, a battery life of up to 30 hours are supposed to be possible with the 9 cell system battery and additionally docked 9 cell battery slice. We achieved a plausible battery life of up to 6 hours with our 6 cell battery with a capacity of 57 Wh WLAN test. The T420 has basically been designed for business customers who are looking for a solid office laptop with a good application performance and nevertheless good mobile qualities. A slight performance increase in 3D applications can be expected in the configurations with a dedicated Nvidia NVS 4200M graphics card, which also supports DirectX 11, listed in the USA. However, our test laptop won't mutate to a stronger graphics workstation even with this graphics solution. By courtesy of ... In Review Lenovo Thinkpad T420 4236-NGG, by courtesy of SpecificationsMemory4 GB , 1x 4096 MB; PC3-10700 DDR3 inch 169, 1600 x 900 pixel, LEN40A1, glossy noStorageSeagate Momentus ST9500420AS, 500 GB , 7200 rpmConnections1 Express Card 34mm, 5 USB 1 VGA, 1 DisplayPort, Thinkpad Modem Adapter Modem, 1 Kensington Lock, 1 eSata, 1 Docking Station Port, Audio Connections 1 audio - headphone/microphone - mini phone Card Reader 4in1 SD, MM, SDHC, SDXC, 1 Fingerprint ReaderNetworkingIntel 82579LM Gigabit Network Connection 10/100/1000MBit/s, Intel Centrino Ultimate-N 6300 AGN a/g/n = Wi-Fi 4/, Bluetooth Thinkpad Bluetooth F5521gw Mobile BroadbandOptical driveOptiarc DVD RW AD-7710HSizeheight x width x depth in mm x x 233 = x x inOperating SystemMicrosoft Windows 7 Professional 64 BitAdditional featuresVodafone SIM, various printed information, ThinkVantage Tools, 36 Months Warranty, one USB port is a USB/eSATA combo port, another is a powered USB kg = oz / pounds, Power Supply 190 g = oz / pounds Similar devices from a different ManufacturerDevices from a different Manufacturer and/or with a different CPU Tips for buying a notebook - notebookCHECK Purchase AdvisoryFind the right notebook - notebookCHECK Hardware GuideDisplay resolution comparison - DPI grain size of displaysOur test criteriaManufacturer's informationPros+Good application performance +Comprehensive communication configuration +Pleasant input devices +Keyboard light +Battery options +Display port Cons-Low display contrast -Vertical viewing angle dependency -No USB we like The extensive communication configuration and the good application performance. What we'd like to see New subtle design ideas What surprises us That laptops of this price category still have to be satisfied with generous use of plastic for the case. The competition The Dell Latitude E6420, the HP Elitebook 8460p, perhaps even the Acer Travelmate 8472TG. Lenovo Thinkpad T420 4236-NGG - 04/04/2011 v2old Martina Osztovits Application Performance90% Office - Weighted Average Martina Osztovits, 2011-04-13 Update 2019-04-30 Vus les exigences amplifiées des consommateurs, les fabricants se voient dans la grande obligeance de perfectionner un peu plus la conception des ordinateurs portables. C’est la raison pour laquelle les innovations se développent au jour le jour afin d’installer une certaine facilité dans l’utilisation de ces dispositifs et aussi pour vous permettre de mieux travailler en toute simplicité afin de combler votre satisfaction. Dans ce type d’appareil, ayant bien connu l’influence des nouvelles technologies, vous avez l’ordinateur portable Lenovo ThinkPad T420 qui est doté de plusieurs fonctions et applications qui pourront vous être avantageux sur tous les repères ainsi qu’à toute autre personne. Ce dispositif pourra parfaitement vous plaire et satisfaire vos besoins. Pour le savoir, je vous invite à faire la lecture de cet article afin de découvrir ses différentes caractéristiques qui certainement pourront vous intéresser si vous êtes a la recherche d’un ordinateur portable de grande capacité portable Lenovo ThinkPad T420 est-il recommandé ?Oui, l’ordinateur portable Lenovo ThinkPad est bel et bien recommandé. C’est un appareil informatique est doté de plusieurs atouts de la technologie actuelle. Il est compose d’un disque dure de 320 Go, espace largement suffisant pour effectuer toute sorte de stockage et une mémoire vive de 4 Go. Vous aurez l’opportunité de voir des vidéos en haute définition, jouer à des jeux vidéo sur le net et avec une multitude de nouvelles possibilités innovantes, que l’on ne voit pas encore les autres fabricants d’ordinateur portable adaptées. Il est également doté d’un système d’exploitation plus flexible. Avec ce dispositif, vous pouvez faire tout ce dont vous aurez envie de faire comme effecteur des travaux du boulot, visionner des émissions sur le Net ou des films, faire des partages de données… tout ceci en individuel ou en compagnie. A part la batterie qui tient peu la charge, il saura convenablement vous avis pour » et contre » de l’ordinateur portable Lenovo ThinkPad T420Bonne capacité mémoire de stockageEcran satisfaisantAppareil robusteSystème d’exploitation convenableAppareil facile à déplacerPas de problème de surchauffePrécision d’une garantieAutonomie faibleVoir le prix le plus basJe suis gérant dans un prêt à porter qui se trouve à un pâté de chez moi et je fais plus des vêtements pour femme ainsi que des accessoires vestimentaires. Je suis également le père d’une jeune fille qui est déjà une femme. Cette dernière m’a commis son souci d’avoir un ordinateur portable afin de mieux travailler et conserver ses cours et ses recherches pour concevoir mon mémoire. Bref, je lui ai demandé si elle avait une préférence. Sans toutefois hésitée, elle m’a demandé d’acheter le Lenovo ThinkPad T420. J’ai été très surpris par la précision. Mais bon ! J’ai fini par le lui acheté. Depuis 04 mois qu’elle l’utilise, elle n’est pas encore vu se plaindre. Donc, j’en déduis que cet appareil concorde parfaitement à ses besoins. Par ailleurs, elle fait des appels vidéo avec ses amis. Ceci dit ce dispositif l’aide pour ses études et pour son capacité mémoire de stockage La capacité mémoire de stockage dans un ordinateur portable est une caractéristique tout autant sérieuse que dans un smartphone ou une tablette. Comme de nos jours, les laptops sont des dispositifs qui aident en termes de librairies à rappel, ou de conserve de données personnelles et cruciales. Un large espace de stockage est donc très nécessaire. C’est le cas de l’ordinateur portable Lenovo ThinkPad T420 qui offre un assez large espace pour une vision parfaite. De ce fait, vous aurez l’opportunité de faires des enregistrements de toutes les sorties des séries et des films du moment, de faire des téléchargements de tous les jeux que vous préférez afin de vous distraire de temps à autre. Heureusement que tout ceci est bien possible parce que cet ordinateur portable a un disque dur de 320 Go qui est le cœur névralgique de ce a aussi et une mémoire vive de 4 Go couplée au disque dur qui vous permet de charger rapidement les applications dans votre système sans toutefois passer par celui-ci. Il possède aussi un processeur Intel Core i5-2520M assez puissant avec une fréquence de 2,50 GHz. Même si vous téléchargez des jeux vraiment très gourmands, et des vidéos de grande taille, vous ne serez pas facilement à cours d’ satisfaisant L’avantage qua cet ordinateur portable est certainement son écran. C’est un atout vraiment très important pour une meilleure lisibilité. Son affichage est tellement limpide et net. Il a une taille de 14 pouces de haute définition avec une résolution de 1 366 x 768 pixels. C’est un écran très confortable qui vous permet de mieux voir les donnes contenus dans l’ordinateur portable, même que vous êtes un peu éloigné. Ainsi, vos travaux de bureautique sont garantis. Aussi, vous pouvez profiter de visionner des vidéos de manière parfaitement fluide, avec une gestion de la mise en mémoire. Les films et les séries vous offriront des images dignes grâce à cet ordinateur portable et vous aurez un confort incomparable comme c’est un écran qui possède un angle de vision très stable et qui fournit un contraste bien net. Par contre, la luminosité de cet écran est un peu faible, mais considérablement approuvable, car cet appareil est surtout bien à utiliser dans les bureaux et à domicile. Et cette luminosité est bien adéquate pour ce genre d’ robuste Cet ordinateur Lenovo ThinkPad T420 ne vous éblouira pas seulement grâce à son grand écran qui offre une vision très confortable. C’est aussi un dispositif puissant qui possède des technologies avancées pour vous rendre la vie encore plus facile. Il est à noter qu’il est composé d’un microphone qui a non seulement une entrée audio mais aussi une sortie de ligne pour introduire un casque. Donc que ce soit pour écouter une présentation ou juste pour vous détendre devant un film, les améliorations Dolby vont se charger de vous assurer un environnement sonore totalement immersif. C’est une technologie qui accroît le confort des applications, qui maximise le volume sonore sans aucune distorsion et améliore la qualité des dialogues dans tous les ordinateur qui a vraiment tout pour plaire avec son utilisation, puisqu’il permet aussi un transfert de données assez rapide. Par ailleurs, vous pourrez faire tous les transferts de données et de fichiers que vous désirez de ce Lenovo ThinkPad T420 vers d’autres appareils, grâce à son port USB à 4 broches et son port VGA. Ce laptop est aussi muni d’un port Ethernet qui est un standard de transmission de données pour un réseau local base sur le principe suivant lequel toutes les machines ayant ce réseau sont connectes a une même ligne de communication, constituée de câbles cylindres. Il est aussi à souligner que cet appareil possède un graveur DVD intégré qui va vous permet de mettre vos fichiers sur un support disque. C’est un grand plus pour un tel d’exploitation convenableIl est doté d’un système d’exploitation Microsoft Windows 7 Professionnel. Ce système va vous permettre d’exécuter de nombreux programmes de productivité existants et contribuer à protéger vos données grâce a des sauvegardes automatiques sur votre réseau domestique ou professionnel. Vous pourrez ainsi vous connecter en toute sécurité aux réseaux d’entreprise grâce à la jonction de domaine. Ce système d’exploitation vous conviendra parfaitement et vous apportera une meilleure flexibilité dans vos travaux de bureautique si vous insérez le Microsoft Office et aussi dans vos différentes relaxations afin de vous simplifier la vie dans vos multiples tâches de tous les jours telles que les navigations avancées sur Internet, la création d’un réseau domestique… Avec ses fonctionnalités de divertissement comme Windows Media Center, vous aurez aussi la possibilité de regarder en temps réel et/ou en différé vos émissions télévisées sur le Lenovo ThinkPad facile à déplacer C’est vrai que c’est une fierté de découvrir que le Lenovo ThinkPad T420 possède un poids assez léger de 2,24 Kg qui va vous donner un véritable plaisir en pouvant le déplacer d’un endroit a un autre sans trop de souci où besoin se fait ressentir. Il sera facile pour de négliger très rapidement sa pondérabilité. Ce qui est digne d’un bon ordinateur portable. Ses dimensions sont les plus moindres. Pour les étudiants, c’est moins encombrant parce qu’ils peuvent l’enfiler très rapidement dans leurs effets pour aller travailler avec des amis, ou même pour l’emmener à leur institut de formation. Pour l’utiliser sur place à domicile c’est nécessairement aisé, et c’est même ce qu’il vous faut pour votre domicile. Vous pourrez ainsi le déplacer sans toutefois ressentir une quelconque de problème de surchauffeCet ordinateur portable vous permet de travailler en toute circonstance, n’importe où et à n’importe quel moment. Vu qu’il ne possède pas de support, son installation s’adapte en fonction de l’endroit où vous vous trouvez afin voir dans quelle disposition le placer pour effectuer un travail ou pour vous divertir. Vous n’aurez donc pas de souci de machine qui chauffe lorsque vous l’utilisez de manière intense. C’est la raison pour laquelle le Lenovo ThinkPad T420 est vraiment le dispositif idéal pour tout un chacun. Avec cette machine, fini le stress ! Puisqu’il ne chauffera pas. De plus, vous pouvez travailler sans arrêt, et sans ralentissements souvent causés par la surchauffe de la machine. C’est vraiment un point fort pour ce laptop de pointe. Ainsi, un appareil qui n’émet pas de chaleur malgré un emploi intense peut facilement être posé n’importe où, et même sur les d’une garantie La plupart du temps, la première chose que certaines personnes regardent avant de se décider à faire un achat d’une telle envergure c’est la garantie. L’ordinateur Lenovo ThinkPad T420 en dispose. Voici de quoi vous tranquilliser en tant que prospect. Cette garantie est plus précise car cela concerne les pièces de l’appareil ajouté à la main d’œuvre. Quand une marchandise ne possède pas de garantie, on a très souvent tendance à se dire qu’il n’est pas bon et peut vouloir dire qu’il n’est pas crédible, même si parfois ce ne sont que des superstitions. De manière plus claire, les utilisateurs affectionnent une certaine couverture et avoir ce ne reste qu’une possibilité de retourner un produit en cas de panne, ou en cas de non satisfaction de la la raison pour laquelle le constructeur de cet appareil portatif n’a pas omis d’indiquer cet aspect, même si la garantie qu’il propose est limitée et n’a qu’une durée de 1 an, contrairement à d’autres appareils qui en ont pour 2 ans. Tout compte fait, il faut estimer que c’est déjà assez apaisant de le savoir et ça prouve qu’il a confiance en sa création d’une certaine manière. Ainsi, vous pouvez déjà faire votre commande sans aucune crainte puisque vous avez l’information qu’en cas de problème, vous pouvez le retourner au votre vendeur qui fera une estimation la situation et vous fera un rapport par la très faibleLa batterie fournie avec cet ordinateur est, sauf indication contraire, la batterie d’origine. Celle-ci n’a seulement qu’une autonomie de 2 heures de temps. Ce qui est très insuffisant pour vous permettre de terminer vos travaux de bureautique lors d’une coupure d’électricité ou lorsque vous êtes éloigné des lieux où vous pouvez faire une recharge de votre ordinateur portable. Vous ne pourrez non plus jouer à des jeux gourmands qui s’avèrent énergivores. Vous aurez donc à faire des recharges constantes, chose très embêtante. Mais à part ce petit souci de charge, l’ordinateur portable Lenovo ThinkPad T420 détient toutes fonctionnalités dont vous avez nécessairement le prix le plus basMerci d’avoir lu cet articleSi vous désirez avoir l’ordinateur portable Lenovo ThinkPad T420, il faut que vous sachiez qu’il s’agit d’un dispositif puissant sans l’ombre d’un doute qui fonctionne normalement et qui ne vous causera pas de problème de surchauffe. Bien que sa batterie ait une faible autonomie, il présente néanmoins des exploits perceptibles et tous les membres d’une famille peuvent en faire usage. Ne vous concentrez pas sur son minime bémol, puisqu’il dispose d’un chargeur. J’articulerais que le constructeur a bien sélectionné les éléments qui agrémentent ce dispositif, plus précisément ses performances. C’est ce qui le rend aussi robuste et satisfaisant pour mieux vous accompagner au quotidien. Dans tous les cas, voici mon adresse électronique armand afin que vous puissiez m’envoyer vos correspondances si vous avez une quelconque contrariété, ou encore des impressions à faire concernant cet appareil portatif. Vous pourrez aussi me faire parvenir toutes vos suggestions, toujours à la même adresse. Uma constante invariável. O design experimentado e testado do Thinkpad praticamente se manteve intacto no exterior. Mas a partir de agora, o novo hardware Sandy Bridge faz seu trabalho dentro do T420. Além disso, o compacto portátil de escritório ostenta uma excelente configuração de comunicações para o campo Lenovo sem dúvida criou um nome por si mesma no campo empresarial com os portáteis Thinkpad. A série T deseja "oferecer os melhores serviços de segurança, comodidade, serviços e suporte" se acordo com o web site da Lenovo, e, portanto, distingue-se do topo da série W significantemente mais forte. Em compensação, a série X pontua com uma mobilidade mais ampla. O nosso equipamento de teste é o de 14 polegadas da série T, chamado T420. Adjacentemente, o modelo de 15 polegadas, T520, também é oferecido e está em análise ao mesmo tempo. Essencialmente os portáteis Tx20 somente se diferenciam dos modelos anteriores, chamados T410 e T510, por uma atualização no hardware para os novos processadores Sandy Bridge. O nome completo do equipamento é T420 4236-NGG. Dentro dele um CPU Intel Core i7 2620M faz o seu trabalho. O chip gráfico incorporado, Intel HD Graphics 3000, esta exclusivamente disponível para a saída de vídeo em nosso modelo de teste. Esta configuração é suportada por uma memória de quatro gigabytes DDR3 e um veloz disco rígido de 500 GB com uma velocidade de rotação de 7200 rpm. Além de vários processadores Core i, o T420 também está disponível com uma placa de vídeo dedicada NVIDIA NVS 4200M e tecnologia Optimus – pelo menos nos EUA. Conseqüentemente, a valoração das partes contingentes do desempenho depende da configuração real e pode não necessariamente ser aplicado a outros modelos. O Thinkpad T420 pode ser praticamente visto como um oponente imediato do Latitude E6420 basicamente configurável se forma similar. Enquanto a Dell optou por um design completamente novo, a Lenovo contrariamente continua com o design experimentado e testado para o Thinkpad T420. Vamos demonstrar até que grau se diferenciam ambos os portáteis ou 15 polegadas, o visual foi mantidoA primeira vista, o T420 não parece de diferenciar muito do T410. Mas isto é enganoso. Por uma coisa, a diagonal da tela se reduziu de 14,1 polegadas para 14 polegadas. O mesmo se aplica para a altura e largura do portátil, sendo que a profundidade interessantemente aumentou um pouco. As medições para comparação 30,5x340,5x233mm para o T420 e 32x336x239 para o T410. Embora muitas poucas mudanças tenham sido feitas na conectividade, a Lenovo permanece com o design leve de concha. Nenhuma modificação pode ser encontrada nas opções de cores ou materiais. O case quase completamente preto foi feito de plástico. A sensação táctil corresponde à seleção dos materiais. No entanto, as superfícies mate e levemente ásperas nãos são desagradáveis. A estabilidade do case é basicamente satisfatória. Mas ainda mostra as mesmas deficiências conhecidas do T400. Portanto, na área do compartimento Ultra Bay e na coberta plástica sobre o teclado. O case pode ceder um pouco e ranger sob pressão seletiva. Os componentes da tela resistem bem os nossos testes de rigidez e pressão. Quando o portátil é levantado pelas bordas não se deforma quase nada. As dobradiças primeiro cedem antes que surjam distorções na imagem sob pressão seletiva. Em compensação, o marco da tela cede evidentemente quando é aplicada pressão e permite que os desvios da imagem se tornem visíveis. Gostamos das dobradiças metálicas que dificilmente se balançam depois de ajustar o ângulo de apertura. Surpreendentemente, elas não suportam muito bem as condições de trabalho turbulentas viagem em trem. Como são suaves e a unidade base é suficientemente pesada, é possível abrir e fechar o portátil com uma mão. O ângulo máximo de apertura de um pouco mais de 100 graus não causa restrição alguma. Adicionalmente ao design de concha, o gancho ramshorn contribui para o transporte seguro. Ele mantém o equipamento seguramente fechado e pode ser aberto facilmente com o botão deslizante na frente. Vamos começar com um tour ao redor do próprio equipamento. Notamos que o posicionamento favorece um pouco aos usuários destros. Dependendo da utilização de entradas individuais, alguns cabos podem encher o lado esquerdo, o qual poderia obstruir consideravelmente a área de trabalho à esquerda do portátil. Duas das cinco entradas USB o entrada para tela, a VGA e a RJ45 estão na área central esquerda. Em oposição, a Lenovo tomou cuidado no posicionamento de entradas que potencialmente estarão ocupadas de forma permanente, como as outras duas entradas USB e a entrada combinada eSATA/USB, na área posterior direita. Adicionalmente, a direita aloja, da frente para trás, um conector de áudio combinado de 3,5mm, o drive ótico em um compartimento Ultra Bay, um leitor de cartões 4em1 que suporta SD, MM, SDHC, SDXC, e uma entrada ExpressCard34 port. A parte posterior é completada por uma entrada USB energizada e um modem RJ11. O adaptador de força também é conectado na parte posterior do case. Infelizmente, a Lenovo, como a Dell no seu E6420, esqueceu-se de instalar uma entrada USB no curso de atualização. Embora a interface eSATA também ofereça um índice de transferência de dados mais alto que o de um USB cada vez mais memórias de armazenamento mássico estão sendo oferecidas com entradas USB e o eSATA esta desaparecendo pouco a pouco do mercado. Em comparação com a concorrência, também notamos que a Dell recorre à utilização de uma entrada HDMI no E6420 e por isso aceita as restrições pertinentes. Em oposição, a Lenovo permanece decidida na instalação de uma entrada para tela diretamente no equipamento. Comparado com o seu predecessor, o T410, quase nada significante foi modificado. Apenas uma interface USB energizada foi adicionada. Além disso, a disposição das interfaces foi corrigida, mas não realmente melhorada. Portanto, se você encontrar cabos na área de trabalho do lado do portátil, ou se você não deseja voltar a conectar todos os cabos após o uso móvel, você pode fazer uso de uma estação docking. A entrada docking está, como é habitual, na parte inferior do portátil. Por falar em estações docking – continua sendo interessante ver quais soluções docking conseguirão chegar a te a Europa. Atualmente, dois modelo estão disponíveis para oT420 nos EUA O ThinkPad Mini Dock Plus Series 3 US/Canada/LA -> infromação do fabricante por cerca de 250 Dólares Americanos. Ele permite conectar três monitores externos adicionais adicionalmente à tela instalada. Em segundo lugar, a entrada ThinkPad Port Replicator Series 3 -> informação do fabricante por cerca de 280 Frontal Botão deslizante para abrir Lado Esquedo Ventilador, VGA, RJ45 LAN, dois USB compartimento para disco rígido Lado Posterior RJ11, USB energizado, bateria, conector de força, ventilador Lado Direito conector de áudio combinado, drive ótico, ExpressCard34, Leitor de Cartões 4em1, USB entrada combinada USB/eSATA, compartimento de segurança KensingtonComunicação Como o T410, o nosso T420 de teste ganha pontos uma extensa configuração de comunicação. Tudo o que é útil e está disponível está instalado. Um módulo Bluetooth versão é opcional, e está instalado no nosso equipamento de teste. Este permite a troca de dados com equipamentos pequenos portáveis, como PDAs ou telefones celulares. Também opcional é um módulo de banda larga móvel F5521gw Mobile Broadband também instalado em nosso Thinkpad. O compartimento SIM equivalente está localizado no compartimento da bateria. Os cabos da antena estão instalados para que assim um módulo UMTS/HSPA possa ser instalado depois. Com respeito ao WLAN, são dadas várias opções. Um módulo Centrino Ultimate-N 6300 AGN agn da Intel está no equipamento de teste. O portátil pode ser conectado às redes Ethernet através da conexão de rede Intel 82579 LM Gigabyte. As videoconferências não são um problema com a câmera opcional de 720p HD es esta configuração. Segurança Adicionalmente ao obrigatório Seguro Kensington Lock, o T420 também tem um leitor de impressões digitais, entre outras coisas. Um teclado a prova de derrames evita a perda de dados no caso de um acidente com líquidos. Suprimentos Além da parafernália necessária, como o adaptador de força e bateria, apenas um pouco de informação impressa está incluída no conteúdo da entrega. O usuário deve criar DVDs de recuperação para o pré-instalado Windows Professional 64bit imediatamente depois da compra. Porém, isto não é um problema com a conveniente ferramenta ThinkVantage. Garantia A garantia padrão para a gama T é de três anos na Europa. A garantia básica inclui apenas um ano de serviço “bring-in” nos EUA. Várias extensões da garantia podem ser adquiridas Nem o design nem a disposição foram modificadas em comparação com o T410. Aparte das teclas STRG e FN trocadas, estamos lidando com uma disposição padrão com agrupações de teclas claramente posicionadas. A tecla blue ThinkVantage mais uma vez é a tecla adicional mais chamativa. Ela abre as ferramentas ThinkVantage, respectivamente um processo de recuperação pode ser iniciado durante o booting. À esquerda dela está um botão de mute para os alto falantes e microfone e um controle giratório para o volume. A iluminação do teclado está integrada no marco superior da tela, como estava no T410. Esta pode ser ligada /desligada com as teclas FN+PGUP. A luz pode ajudá-lo a encontras o seu caminho nos dispositivos de entrada na escuridão, mas em nossa opinião não se compara com teclado com iluminação posterior. Os digitadores produtivos irão achar o teclado do Thinkpad muito agradável devido a suas qualidades mecânicas, deslocamento bem dosado da tecla e claro ponto de pressão. Adicionalmente, as teclas côncavas aumentam o conforto da digitação. Infelizmente, o teclado torna-se muito barulhento especialmente durante a digitação enérgica. No entanto, a digitação não é um problema desde o início. Touchpad e Trackpoint As semelhanças com o T410 são impressionantes aqui. O touchpad e trackpoint podem ser independentemente desabilitados e habilitados através do F8+FN. O touchpad comprova ter uma agradável superfície áspera com boas propriedades de deslizamento. O controle do cursor do mouse novamente é preciso sem problemas e os recursos multi-touch respondem conforme o esperado. Além disso, o rolamento através dos campos de rolamento na borda do touchpad também é possível. As bordas do touchpad dificilmente podem ser distinguidas do case que o rodeia devido a uma junta simples. Os botões correspondentes precisam de um pouco de tempo de adaptação, pois estão na borda angular. Eles são lisos, respondem bem sobre toda sua superfície e o clique não é muito barulhento. Alternativamente, também há um trackpoint vermelho. Ele permite uma navegação precisa do cursor do mouse. Os botões correspondentes são suficientemente silenciosos. Também não há reclamos com respeito à lugar do formato 1610 como é no T410, agora é usado um formato 169. A diagonal da tela foi marginalmente reduzida de 14,1 para 14 polegadas. Em compensação, a resolução foi aumentada de 1440x900 pixels para 1600x900 pixels. Com isso, agora há tantos pixels na altura total como no modelo anterior. No entanto, O dispositivo de teste ganhou um pouco de largura. Como é de se esperar de um equipamento empresarial, a superfície da tela foi revestida com um filme anti-reflexos. Com isso o equipamento não apenas atende os requerimento de telas de estações de trabalho, mas também é mais adequado para o trabalho em T420 tem melhorado no geral em comparação com o T410 em termos de avaliações. É mais brilhante e iluminado mais uniformemente. Apenas o valor de escuridão é levemente mais baixo que o do modelo anterior. Apesar de tudo, o melhor brilho resulta em um contraste um pouco mais alto. Em contraste, o E6420 pontua com um brilho máximo significantemente mais alto de 320 cd/m2 e ainda 277,7 cd/m2 em média. Em compensação, o portátil da Dell deve admitir a clara derrota no campo do valor de escuridão e contraste. 197cd/m²190cd/m²214cd/m²213cd/m²223cd/m²221cd/m²210cd/m²198cd/m²194cd/m² Distribuição do brilhoLEN40A1Gossen Mavo-MonitorMáximo 223 cd/m² Nits Médio cd/m²iluminação 85 %Contraste 1621 Preto cd/m² AdobeRGB 1998 Argyll 3D61% sRGB Argyll 3D Display P3 Argyll 3DComo pode ver nas fotos de comparação, que foram feitas com vários perfis de cores ICC, o T420 não foi feito para a edição profissional de imagens. O Adobe RGB e sRGB não são cobertos. Por isso está na mesma liga do Dell E6420 com o mesmo tamanho da tela e resolução. As diferenças em vista da reprodução de cores se tornaram visíveis em comparação com telas com qualidade especialmente alta. Elas podem ser encontradas, por exemplo, no Apple MacBook Pro 13 ou no Dell XPS 15. Inclusive o irmão mais velho do T420, o T520, ganha mais pontos aqui. Com uma superfície anti-refletiva e um brilho médio de mais de 200 cd/m2, que também está disponível no modo de bateria, o modelo de teste é muito adequado para o uso em exteriores. O conteúdo da tela permanece suficientemente legível inclusive sob a luz direta do ultimo ponto que vimos para avaliar a tela é a sua estabilidade dos ângulos de visão. Resulta satisfatório horizontalmente e a imagem pode ser reconhecida se problemas inclusive em ângulos muito estreitos. Como é habitual na maioria dos portáteis, os ângulos de visão no plano vertical são consideravelmente menores no T420. Conseqüentemente, você pode ter certeza que precisará ajustar o ângulo de visão freqüentemente para garantir uma imagem legível, especialmente durante o uso em exteriores. Quando muita gente esteja olhando para a tela ao mesmo tempo, seus olhos devem estar quase na mesma de Visão Lenovo Thinkpad T420 4236-NGGA série Thinkpad T420 de portáteis baseiam-se no chipset QM57 Express. Atualmente vários modelos com Core i5 ou i7 da segunda geração estão sendo oferecidos. Para ser exato, o nosso modelo de teste foi equipado com um CPU Intel Core i7 2620M Sandy Bridge. Atualmente é o processador dual core mais veloz da família Sandy Bridge que foi introduzido no início de 2011. Pode processar até quatro threads ao mesmo tempo graças ao Hyper Threading. A tecnologia Turbo Boost permite que os de um núcleo possam acelerar dinamicamente de 2,7 GHz até 3,4 GHz, dependendo da carga e capacidade de esfriamento. Em comparação com os processadores Arrandale, a função turbo foi melhorada entre outras do Sistema Lenovo Thinkpad T420 4236-NGG O chip Intel HD Graphics 3000 com suporte para DirectX 10 incorporado diretamente no processador está disponível para a saída de vídeo no nosso equipamento de teste. Por isso, o desempenho gráfico está quase no mesmo nível de uma placa Nvidia Geforce 310M de gama baixa. Como o Latitude E6420, modelos com uma NVIDIA NVS 4200M e Tecnologia Optimus estão listados nos EUA. Nosso T420 tem uma RAM de quatro gigabytes DDR3 disponíveis para a memória principal. Eles estão em um só chip, inacessível para o usuário. Apenas o segundo, ainda desocupado compartimento é acessível através da coberta de manutenção. O usuário pode fazer uma atualização facilmente. Devido ao sistema operacional Windows 7 Professional de 64bit, os quatro gigabytes da memória principal podem ser aproveitados eficientemente, ao contrário de uma versão de 32 bit, e não há nada que impeça uma atualização da RAM. O controlador de memória do processador pode controlar um máximo de até oito gigabytes de RAM DDR3-1066/ de Experiência Windows 7ProcessadorCálculos por RAMOperações de memória por da Área de Trabalho para Windows de jogosGráficos 3D empresariais e de rígido principalVelocidade de transferência de dados de R10 Rendering Single CPUs 64Bit5438 Points Cinebench R10 Rendering Multiple CPUs 64Bit11507 Points Cinebench R10 Shading 64Bit5566 Points Ajuda PCMark Vantage Result 7845 pontosAjuda Tanto o processamento como o desempenho de aplicativos é previsivelmente um pouco mais alto que o do E6420 equipado com um Core i3-2310M. Os índices de desempenho estão de acordo com as expectativas nesta configuração de hardware. O nosso candidato de teste atingiu uma pontuação total de 7845 pontos, o qual deve-se especialmente à sua alta sub-pontuação de comunicações, no teste PCMark Vantage para avaliar o desempenho geral. Por isso, esta inclusive no mesmo nível de máquinas para jogos mais potentes, como oAsus G73SW GeForce GTX 460M, Intel Core i7 2630QM, em termos de desempenho de do Desempenho Gráfico O equipamento de teste ainda pode se enfrentar com máquinas para jogos como o Asus G73SW em termos de desempenho de aplicativos. No entanto, em vista do hardware gráfico, não tem chance alguma no desempenho 3D como esperávamos desde o início. Isso é confirmado pelos resultados no Teste Cinebench Shading e os vários benchmarks 3DMark. Infelizmente, os resultados do teste estão por embaixo de aqueles que seriam os esperados para uma HD Graphics 3000. No entanto, como as medições de energia sempre se mantêm por abaixo do par, temos que lidar com um equipamento defeituoso. Outro indicativo disto é que a detecção de dispositivos da Ferramenta ThinkVantage falha regularmente. Para excluir um problema nas configurações verificamos o BIOS e as configurações de energia no Windows 7. Vamos tentar conseguir um equipamento de substituição para uma análise de atualização. Vamos consultar os nossos testes detalhados do chip Intel HD Graphics 3000 e da folha de especificações da HD Graphics 3000 para mais informação. 3DMark 05 Standard 6131 pontos3DMark 06 Standard Score 3381 pontos3DMark Vantage P Result 1696 pontosAjuda Velocidade de Transferência Mínima MB/s Velocidade de Transferência Máxima 102 MB/s Velocidade de Transferência Média MB/s Índice de Explosão MB/s O disco rígido do nosso equipamento de teste é um ST9500420AS da Seagate. Ele tem uma capacidade bruta de 500 GBs, onde uma parte é usada como uma partição de recuperação oculta. Ele alcança resultados coerentes nos testes HDTune e CrystalDiskMark com uma velocidade de revoluções de 7200 rpm. Um gravador de DVD também está disponível como outro equipamento de armazenamento massivo. Para ser precisos, é um Optiarc DVD RW do Sistema O T420 sempre permanece suficientemente silencioso sem importar a carga. O ruído do sistema e de constantes 32,2 dBA com carga leve. O disco rígido é um pouco mais barulhento com 32,5 dBA durante o acesso. O portátil de teste atinge apenas um nível de ruído máximo de 35,2 dBA durante o nosso teste de estresse GPU e CPU com carga total. Por isso o ruído operacional sempre mantém um nível aceitável. No entanto, as avaliações do consumo de energia 28W máx. indicam que o processador não aproveita sua máxima capacidade possível mesmo durante o teste de estresse. Monitorando a freqüência do processador com a ferramenta CPUZ registramos a freqüência predefinida de 2,7 GHz para o CPU no teste de estresse. Isto significa que não há overclocking em nenhum dos núcleos e no GPU durante a carga. O CPU funciona com uma freqüência de 3,19 GHz quando apenas o Prime95 está ativado. Quando o Furmark é adicionado, o sistema reduz para 2,7 GHz. Também conseguimos registrar um máximo de 3,19 GHz no Cinebench R10 Single Core rendering. O medidor de freqüência permanece no mesmo nível no multi core rendering. Conseqüentemente a freqüência máxima possível do i7-2620M de 3,4 GHz não é aproveitada em nenhum estado testado. Apesar de tudo, os resultados de benchmark que são determinados no Cinebench R10 se mantêm dentro da faixa esperada dos CPUs i7-2620M e não demonstram irregularidades com respeito a possíveis afogamentos. Barulho Ocioso / / dBHDD dBDVD / dBCarga / dB 30 dBsilencioso40 dBAaudível50 dBAruidosamente alto min , med , max Voltcraft SL-300 Plus 15 cm de distânciaTeste de EstresseTemperatura O T420 testado permanece agradavelmente frio em todas as partes sob carga leve. Isto ainda se aplica para toda a superfície superior mesmo durante cargas mais pesada, por exemplo, duas horas no teste de estresse. Apenas temperaturas pouco acima das corporais são medidas em alguns lugares no lado inferior, e uma máxima de 39,7 graus Celsius nas áreas da saída de ar do ventilador. As temperaturas internas do núcleo do processador dual core Core i7 2620M pulam até um máximo de 85 graus Celsius. Devemos apontar que o T420 na configuração que temos em mãos, não foi criado para aplicativos de gráficos pesados senão para office e internet. ° ° °C ° ° °C ° ° °C Máximo °CMédio °C ° ° ° ° ° ° ° ° °C Máximo °CMédio °C alimentação elétrica °C Temperatura do quarto °C Raytek Raynger ST± The average temperature for the upper side under maximal load is °C / 90 F, compared to the average of °C / 85 F for the devices in the class Office.+ The maximum temperature on the upper side is °C / 96 F, compared to the average of °C / 94 F, ranging from to °C for the class Office.+ The bottom heats up to a maximum of °C / 103 F, compared to the average of °C / 98 F+ In idle usage, the average temperature for the upper side is °C / 80 F, compared to the device average of °C / 85 F.+ The palmrests and touchpad are cooler than skin temperature with a maximum of °C / F and are therefore cool to the touch. - The average temperature of the palmrest area of similar devices was °C / 82 F °C / F. Alto falantes A qualidade dos alto falantes não pretende ser valorada como alta em um portátil de escritório para uso profissional como em, por exemplo, um portátil multimídia notebook. De fato, ambos os alto falantes estéreo, à esquerda e direita do teclado, são basicamente adequados para a voz. Não é possível desfrutar da música devido ao com diminuto, pobre em baixos e pesado nos agudos. Fones de alta qualidade, conectados ao conector combinado de áudio de 3,5 mm, podem remediar isto. O sinal é transmitido claramente, sem distorções e sem estática no teste apenas teste de áudio, sem medições.O nosso modelo de teste está no começo com uma bateria de lítio íon de 6 células de 57 Wh neste teste. Uma possibilidade de estender a duração da bateria é fazer o pedido da bateria de 9 células. A outra é o acoplamento de uma bateria de 9 células. De acordo com as especificações do fabricante, é possível uma duração máxima total da bateria de até 30 horas. Em qualquer caso, uma máxima duração de bateria de "apenas" sete horas e meia é possível com a matéria que temos em mãos. O teste BatteryEater's Reader determinou esta duração com brilho mínimo, com o módulo wireless desabilitado e em modo de economia de energia. Este índice é pouco realista para o uso prático devido ao mínimo é inútil brilho mínimo. Nós executamos o teste WLAN som um brilho utilizável, ou seja, desde o nível 12 a 15. Podemos fazer pesquisas na internet para até seis horas, também em perfis de economia de energia, neste cenário de baixa carga sem vídeos flash. A reprodução de um filme acaba depois de um pouco mais de três horas no teste de DVD. Foi executado com brilho máximo e módulos wireless desabilitados, bem como em modo "Vídeo". A duração da bateria cai em picada com aplicativos intensos 3D, brilho máximo, módulos wireless habilitados e modo de desempenho máximo. O teste BatteryEater Classic simula um cálculo OpenGL e registra uma mínima duração de bateria de apenas cerca de uma de Execução da Bateria Ocioso sem WLAN, min brilho 7h 28min Navegar com WLAN 5h 59min Carga máximo brilho 1h 06min O Latitude E6420 claramente tem a liderança nos testes de bateria devido a sua maior bateria de 9 células. As durações de bateria do nosso equipamento são, apesar de tudo, extraordinárias em relação com a capacidade da bateria. Isso se deve especialmente devido ao baixo consumo de energia. É um pouco mais baixo que o do E6420 com 6,8 para 11,5 watts no modo inativo. Surpreendentemente, o máximo consumo de energia não foi tão alto quanto esperávamos no teste de estresse 100% de carga do CPU e GPU. Somente o CPU comprova ter uma perda máxima de energia de 35 watts. No entanto, nossos medidores apenas registraram 28,6 watts para o sistema inteiro. Por isso, verificamos as configurações no PowerManagement da Lenovo em Windows 7 e as configurações do BIOS. Mas não encontramos nada em lugar algum. As configurações para o funcionamento conectado na tomada estão estabelecidas claramente em "Desempenho Máximo" no BIOS. O T420 também está disponível com uma placa de vídeo NVIDIA NVS 4200M dedicada nos EUA. Por isso a Tecnologia Optimus é usada para manter baixo o consumo de energia durante a carga baixa. Como o nosso equipamento de teste E6420 está equipado com a placa de vídeo NVIDIA NVS 4200M e opção Optimus, nosso T420 tem uma evidente vantagem no consumo de energia durante cenários de Thinkpad T420Além do aumento do desempenho esperado devido à nova geração de processadores, muitas coisas experimentadas e testadas foram mantidas. Isto também aplica-se tanto para o case como para as convenientes ferramentas pré-instaladas ThinkVantage. Pequenas modificações e upgrades podem ser encontrados na conectividade. Apesar de tudo, o usuário ainda tem que viver sem o USB Em compensação, uma entrada eSATA/USB foi instalada. A configuração de comunicações do portátil de teste é extensa. Todas as opções disponíveis são aproveitadas módulo de banda larga, Bluetooth versão WLAN com suporte para padrão n e gigabit Ethernet. Gostamos da tela de 14 polegadas que é marginalmente menor que a do T410 diagonal da tela. A disposição do desktop foi mantida, respectivamente inclusive foi melhorada em largura devido a uma resolução de 1600x900. Não há nada que impeça o uso móvel com a tela mate e o bom brilho. No entanto, o T420 apenas oferece valores padrão em termos de reprodução de cores. De acordo com o fabricante, supostamente é possível atingir uma duração de bateria de até 30 horas com a bateria de 9 células do sistema e adicionalmente, com a bateria acoplada de 9 células. Atingimos uma duração de bateria plausível de até 6 horas com nossa bateria de 6 células com uma capacidade de 57 Wh Teste WLAN. O T420 basicamente foi criado para clientes empresários que procuram por um sólido portátil de escritório com um bom desempenho de aplicativos e, apesar de tudo, boas qualidades móveis. Um leve aumento do desempenho em aplicativos 3D pode ser esperado nas configurações com uma placa de vídeo Nvidia NVS 4200M dedicada, que também suporta DirectX 11, listados nos EUA. No entanto, o nosso portátil de teste não sofrerá uma mutação para uma estação de trabalho co gráficos mais potentes mesmo com esta solução gráfica. Por cortesia da... Em Análise Lenovo Thinkpad T420 4236-NGG, por cortesia da Especificações do portátilMemória4 GB , 1x 4096 MB; PC3-10700 DDR3 polegadas 169, 1600 x 900 pixel, LEN40A1, Brilhante nãoDisco rígidoSeagate Momentus ST9500420AS, 500 GB , 7200 rpmPlaca de SomConexant D330Conexões1 Express Card 34mm, 5 USB 1 VGA, 1 DisplayPort, Thinkpad Modem Adapter Modem, 1 Kensington Lock, 1 eSata, 1 Docking Station Port, Conexões Audio 1 áudio - fones/microfone - mini fone Card Reader 4em1 SD, MM, SDHC, SDXC, 1 Leitor de Impressões DigitaisFuncionamento em redeIntel 82579LM Gigabit Network Connection 10/100/1000MBit/s, Intel Centrino Ultimate-N 6300 AGN a/g/n = Wi-Fi 4/, Bluetooth Thinkpad Bluetooth Banda Larga Móvel F5521gwUnidade óticaOptiarc DVD RW AD-7710HTamanhoaltura x largura x profundidade em mm x x 233Sistema OperativoMicrosoft Windows 7 Professional 64 BitCaracterísticas adicionaisVodafone SIM, informações impressas, Ferramentas ThinkVantage, 36 Meses Garantia, uma entrada USB é uma entrada combinada USB/eSATA, outra é uma interface USB kg, Suprimento de energia 190 g Portáteis de um fabricante diferente e com CPU diferentePortáteis com o mesmo GPUPortáteis com o tamanho de tela e peso Dicas para comprar um portátil - Assessoria de Compras notebookCHECKEncontre o portátil correto - Guia de Hardware notebookCHECKComparação de resoluções de telas - DPI grain size das telasNosso critério de testeInformação do fabricantePro+Bom desempenho de aplicativos +Extensa configuração de comunicações +Agradáveis dispositivos de entrada +Luz do teclado +Opções de baterias +Display port Contra-Baixo contraste da tela -Dependência dos ângulos de visão verticais -Sem USB que gostamos A extensa configuração de comunicações e o bom desempenho de aplicativos. O que gostaríamos de ver Novas idéias de design sutil O que nos surpreendeu Que portáteis desta categoria de preços ainda tenham que ser satisfeitos com o generoso uso de plástico no case. A concorrência O Dell Latitude E6420, o HP Elitebook 8460p, talvez inclusive o Acer Travelmate 8472TG. Lenovo Thinkpad T420 4236-NGG - 04/04/2011 v2old Martina Osztovits Desempenho da aplicação90% Office - Médio equilibrado Martina Osztovits, 2011-05- 6 Update 2013-06- 6

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