Toshiba Satellite L550D-124, Satellite. Processor frequency: 2 GHz, Processor family: AMD Athlon, Processor model: M300. Internal memory: 4 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 250 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