eVGA e-GeForce 8800 GTX 768MB Superclocked Graphics Card PCI Express x-16 384-bit GeForce 8800 GTX KO with 621MHz clock 768MB 384-bit 1 ns GDDR3 memory 1.0 GHz clock/2.0 GHz effective memory rate Direct X 10.0, Shader Model 4.0, Dual DVI and HDTV support