Lenovo ThinkPad T400, ThinkPad. Processor clock speed: 2.53 GHz, Processor family: Intel Core 2 Duo, Processor model: T9400. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM, Memory slots: 2x SO-DIMM. Total storage capacity: 160 GB, Hard drive interface: Serial ATA, Hard drive rotational speed: 7200 RPM. Display diagonal: 358.1 mm (14.1 "), Display resolution: 1440 x 900 pixels. Discrete graphics adapter model: AMD Mobility Radeon HD 3470, Maximum graphics adapter memory: 256 MB