Lenovo ThinkPad X201, ThinkPad. Processor clock speed: 2.53 GHz, Processor family: Intel Core i5, Processor model: i5-540M. Internal memory: 2 GB, Memory clock speed: 1066 MHz, Maximum internal memory: 8 GB. Total storage capacity: 320 GB, Hard drive capacity: 320 GB, Hard drive interface: Serial ATA. Display diagonal: 307.3 mm (12.1 "), Display resolution: 1280 x 800 pixels. Maximum resolution: 1280 x 800 pixels