Lenovo ThinkPad L512 comes with 15-inch display while Lenovo ThinkPad L412 with 14-inch LED backlight display (resolution of 1366×768 pixels). Both of them powered by 1.86GHz Celeron or Intel Core i5, a 320GB hard drive, up to 8GB of RAM, Wi-Fi, Bluetooth, and 3G/4G or WiMAX module with Gobi 2000 module support for AT&T, Sprint and Verizon. Also Lenovo ThinkPad L512 and Lenovo ThinkPad L412 includes a 7-in-1 card reader, four USB ports, choices of Intel integrated or ATI Mobility Radeon HD 5145 graphics, and up to 8 hours of battery life, Windows 7 OS. The laptops are the greenest on the market by integrating the highest amounts of post consumer recycled content, strong web conferencing and military tough durability. Prices starting at $649.