MSI R4850-2D512-OC Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail Product name R4850-2D512-OC GPU Radeon HD4850 Core Clock 640Mhz vs Std. 625Mhz Memory Clock 1986Mhz Stream Processor 800 3D Mark06 - 3D Mark Vantage P7636 / X3160 Memory Type DDR3 16*32-1 Memory Size 512MB Memory Bus 256bit Form Factor ATX Cooling Seaweed Fan