Toshiba Satellite L550-151, Satellite. Processor frequency: 2.2 GHz, Processor family: Intel Core 2 Duo, Processor model: T6600. Internal memory: 4 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 320 GB, Hard drive interface: Serial ATA, Hard drive speed: 5400 RPM. Display diagonal: 43.94 cm (17.3"), Display resolution: 1600 x 900 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: AMD Mobility Radeon HD 4570, Discrete graphics adapter memory: 512 MB