HP 6735s, AMD Athlon, 2.1 GHz, 15.4", 1280 x 800 pixels, 4 GB, 250 GB HP 6735s. Processor family: AMD Athlon, Processor model: QL-64, Processor frequency: 2.1 GHz. Display diagonal: 15.4", Display resolution: 1280 x 800 pixels. Internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB. Discrete graphics card model: AMD Mobility Radeon HD 3200. Operating system installed: Windows Vista Home Basic. Weight: 5.51 lbs (2.5 kg)