Lenovo X220t, ThinkPad. Processor clock speed: 2500 MHz, Processor family: Intel Core i5, Processor model: i5-2520M. Internal memory: 4096 MB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Storage media type: HDD, Hard drive capacity: 500 GB. Display diagonal: 317.5 mm (12.5 "), Display resolution: 1366 x 768 pixels, Aspect ratio: 16:9. Graphics adapter family: Intel, On-board graphics adapter model: HD Graphics 3000