BFG Tech nVidia GeForce 7900 GTX OC 512MB 256-bit GDDR3 PCI-E x16 SLI Support Overclocked Video Card - BFG BFGR79512GTXOCE GPU: NVIDIA GeForce 7900 GTX Bus Type: PCI Express Memory: 512MB GDDR3 Core Clock: 670MHz (vs. 650MHz Standard) Memory Clock: 1640MHz (vs. 1600MHz standard) Vertices: 1440 million/sec. Memory Bandwidth: 52.4GB/sec. Shader Model: 3.0 API Support: Microsoft DirectX 9 and lower, OpenGL 2.0 and lower for Microsoft Windows Connectors: 2 Dual-Link DVI-I + HDTV RAMDACs: Dual 400MHz HDCP Enabled: No