HP Pavilion DV7-2270US has powered by 2.0GHz Intel Core2 Quad Q9000 Processor, 4 GB DDR3 RAM (2 Dimm Max supported 8 GB), 500GB (7200RPM) SATA Hard Drive, LightScribe SuperMulti 8X DVD±R/RW with Double Layer Support, 17.3″ Diagonal HD+ High-Definition HP LED BrightViewWidescreen Display (1600 x 900), ATI Mobility Radeon HD 4650 (M96) with up to 2.8 GB total available graphics memory with 1 GB dedicated, Genuine Windows 7 Home Premium 64-bit, Battery Up to 4.5 Hours of Battery Life