EVGA GeForce GTX560 HD SPECS: 448 Cores Core Clock: 797 MHz, Memory Clock: 3900 MHz Effective, Shadder Clock: 1594 MHz, CUDA Cores: 448, Bus Type: PCI-E 2.0, Memory Detail: 1280MB GDDR5, Memory Bit Width: 320 Bit, Memory Speed: 0.5 ns, Memory Bandwidth: 156 GB/sec, Texture Fill Rate: 44.6 GT/s (2) Dual-Link DVI-I HDCP Capable Connectors, (1) Mini-HDMI 1.4a Connector. OpenGL 4.2 Support. 550watt or greater Power Supply required with a minimum of 38 amps on the +12 volt rail. Two 6-pin PCI express or four avaiable hard disc power connectors required.