Lenovo X220, ThinkPad. Processor clock speed: 2.7 GHz, Processor family: Intel Core i7, Processor model: i7-2620M. Internal memory: 4 GB, Memory clock speed: 1333 MHz, Memory layout: 2 x 2 GB. Total storage capacity: 160 GB, Hard drive capacity: 160 GB, Hard drive interface: Serial ATA. Display diagonal: 317.5 mm (12.5 "), Display resolution: 1366 x 768 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: HD Graphics, Maximum resolution: 1366 x 768 pixels