Lenovo ThinkPad W540 20BG0016US 15.5" LCD Mobile Workstation - Intel Core i7 i7-4800MQ Quad-core (4 Core) 2.70 GHz - 8 GB DDR3L SDRAM - 256 GB SSD - Windows 7 Professional 64-bit - 2880 x 1620 - In-plane Switching (IPS) Technology - Black

This portable 15.6" workstation is the thinnest and lightest in its class, yet sacrifices nothing in terms of speed, power, and durability. Graphics-intensive, ISV-certified applications with blazing-fast processing and advanced graphics technology, plus ThinkPad's known reliability, mean you can handle any heavy-computational task from anywhere you want to be.