Lenovo ThinkPad T420 4178A56

The Lenovo ThinkPad 4178A56 laptop sports Second Generation Intel Core i7-2640M dual core processor which is based on the Sandy Bridge architecture and features Hyperthreading technology that can handle 4 threads at once for additional performance by up 20%. The Intel Core i7-2640M offers a larger L3 cache of 4MB. This processor has a base clock speed of 2.8 GHz but because of the TurboBoost Technology it can increase up to 3.3 GHz when 2 cores are active and 3.5 GHz when only 1 core is active.

It has an integrated graphics controller called Intel HD Graphics 3000 which is said to be as powerful as entry level discreet graphics card. In terms of connectivity, this Lenovo ThinkPad 4178A56 offers WIFI IEEE 802.11b/g/n; eSATA/USB Combo; DisplayPort; Gigabit Ethernet; and VGA port. It measures: 1.2"(H), 13.4"(W), 9.2"(D).

Additionally, the Lenovo ThinkPad T420 4178A56 laptop also features 14-inch Active Matrix TFT Color LCD with LED backlit technology and 1600 x 900 screen resolution; 4GB DDR3 memory; 160 GB solid state drive; DVD±R/±RW optical disk drive; built-in webcam; and lithium-ion battery pack.

This Lenovo ThinkPad T420 4178A56 is powered by 64-bit Genuine Windows 7 Professional operating system. It costs around $1370.