eVGA e-GeForce 8800 GTS Superclocked Graphics Card PCI Express x-16 320-bit GeForce 8800 GTS with 576MHz clock 640MB 320-bit 1.2 ns GDDR3 memory 850 MHz clock/1700MHz effective memory rate Direct X 10.0, Shader Model 4.0, Dual DVI and HDTV support