Lenovo ThinkPad W520, Intel® Core™ i7, 2.2 GHz, 15.6", 8 GB, 320 GB, Windows 7 Professional
Lenovo ThinkPad W520. Processor family: Intel® Core™ i7, Processor model: i7-2720QM, Processor frequency: 2.2 GHz. Display diagonal: 15.6". Internal memory: 8 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Storage media: HDD, Optical drive type: DVD±RW. On-board graphics card model: Intel® HD Graphics 3000. Operating system installed: Windows 7 Professional. Weight: 5.95 lbs (2.7 kg)