Alienware Aurora AAR2-2663CSB Desktop (Cosmic Black) [Discontinued By Manufacturer] 2.8GHz Intel Core i7-860 processor with 8MB cache 6GB DDR3 SDRAM at 1333MHz (3 DIMMs) 1TB, 7200 RPM hard drive; 24x CD/DVD Burner (DVD+/-RW) with Double-Layer ATI Radeon HD 5870 (1GB) GDDR5 Graphics Card Genuine Windows 7 Home Premium (64-Bit) operating system