Lenovo Thinkpad T420
Specifications

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Reviews for the Lenovo Thinkpad T420
Source: Laptop Logic

Finally, the first certified Eco-Friendly laptop is here. Thinkpad T420 has been certified Sustainable Product Certification (SPC) Gold, by UL Environment. This laptop comes with multiple eco-friendly components, like low power halogen lamps, and recycled plastic for manufacturing the body. Powered by the latest Intel Core i5 processor, this machine is good for students and those professionals who use their laptops for atleast 10 hours a day.
Single Review, online available, Very Short, Date: 09/21/2011
Source: Student Buying Guide

The ThinkPad T420 or T420i is a great option as a college laptop. It has the battery life, usability and build quality it takes to get work done around campus. The option of configuring either a budget level laptop of around $800 or high-end laptop configuration of $1,400+ is great and allows you to design a laptop that fits your needs, but still get the same build and design quality no matter what you include. I like the fact the option for a higher resolution screen is present, for those of us that find we can do work more efficiently using two windows open at once on the screen you will appreciate the 1600 x 900 resolution screen. Overall a thumbs up on buying the T420 that is a worth successor to the previous ThinkPad T410 and improves on an already great line of laptops.
Single Review, online available, Medium, Date: 04/12/2011
Foreign Reviews
Source: c't - 18/11

battery runtime good, performance satisfying, display good, noise emission very good
Comparison, , Long, Date: 08/01/2011
Comment
Series: Laptop Mag calls the battery runtime "epic", Notebookreview.com writes 10 hours, no doubt, this smaller than average laptop is made for mobile use. Generally, the screen got good ratings except in the russian site Retera. They gave their T420 model a very bad rating.
Intel HD Graphics 3000: Integrated graphics card in the Intel Sandy Bridge processors (Core ix-2xxx). The HD 3000 is the faster (internally GT2 called) version with 12 Execution Units (EUs).
Only some 3D games with very low demands are playable with these cards.
» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.
2310M:
Dual-core processor based on the Sandy Bridge architecture with an integrated graphics card and dual-channel DDR3 memory controller. The CPU is clocked at 2.1 GHz and features the Turbo Boost 2.0 only for the graphics card (650/1100MHz).
» Further information can be found in our Comparison of Mobile Processsors.
14.00":
Above all, this display size is used for subnotebooks, ultrabooks and convertibles. For all three types, this size is quite large. The biggest variety of subnotebooks is represented with this size.
Large display-sizes allow higher resolutions. So, details like letters are bigger. On the other hand, the power consumption is lower with small screen diagonals and the devices are smaller, more lightweight and cheaper.
» To find out how fine a display is, see our DPI List.1.7 kg:
This weight is typical for very big tablets, subnotebooks, ultrabooks and convertibles with a 11-13 inch display-diagonal.
Lenovo: Lenovo ( "Le" as in the English word legend and "novo" (Latin) for new) was founded in 1984 as a Chinese computer trading company. From 2004, the company has been the largest laptop manufacturer in China and got the fourth largest manufacturer worldwide after the acquisition of IBM's PC division in 2005. In addition to desktops and notebooks, the company also produces monitors, projectors, servers, etc.
In 2011, Lenovo acquired the majority of Medion AG, a European computer hardware manufacturer. In 2014, Lenovo took over Motorola Mobility, which gave them a boost in the smartphone market.
From 2014 to 2016 Lenovo's market share in the global notebook market was 20-21%, ranking second behind HP. However, the distance decreased gradually. In the smartphone market, Lenovo did not belong to the Top 5 global manufacturers in 2016.
» Further information can be found in our Notebook Purchase Guide.