Lenovo T420s, ThinkPad. Processor clock speed: 2.7 GHz, Processor family: Intel Core i7, Processor model: i7-2620M. Internal memory: 8 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 320 GB, Hard drive interface: Serial ATA, Hard drive rotational speed: 7200 RPM. Display diagonal: 355.6 mm (14 "), Display resolution: 1600 x 900 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: Intel HD Graphics