CyberpowerPC Gamer Ultra GUA120 Gaming Desktop PC (Black) (Discontinued by Manufacturer) AMD Athlon II X2 260 3.2GHz processor (2MB L2 Cache) 4GB DDR3 SDRAM system memory (expandable to 8GB) 500GB SATA hard drive AMD Radeon HD 6450 Graphics with 1GB video memory Genuine Microsoft Windows 7 Home Premium 64-Bit OS