HP Pavilion g72317cl AMD Quad-Core A8- A8-4500M , 4GB DDR3, 17.3 HD+ LED, 640GB HDD, DVD, Windows 8 64-bit (Manufacturer Refurbished Grade-A with Mfr. 90 day LTD Warranty) (D1C18UAR#ABA) Windows 8 64-bit Microprocessor - 1.9GHz up to 2.8GHz AMD Quad-Core A8-4500M Accelerated Processor Memory - 4GB DDR3 SDRAM (1 DIMM) Memory Slots - 2 user accessible Video Graphics - AMD Radeon HD 7640G Discrete-Class graphics and up to 2029MB total graphics memory