Toshiba L655D-S5164RD, Satellite. Processor clock speed: 1.8 GHz, Processor family: AMD Phenom II, Processor model: P960. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1066 MHz. Total storage capacity: 640 GB, Hard drive capacity: 640 GB, Hard drive interface: Serial ATA. Display diagonal: 396.2 mm (15.6 "), Display resolution: 1366 x 768 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: Mobility Radeon HD 4250, Maximum graphics adapter memory: 1917 MB