Lenovo ThinkPad W540 20BG0013US 15.6" LED Notebook - Intel Core i7 i7-4800MQ 2.70 GHz

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.