EVGA 512-P2-N747-LR e-GeForce 8500 GT 512MB PCI-Express Graphics Card with One Plus One Warranty PCI Express x-16 128-bit GeForce 8500 GT with 450 MHz clock 512MB 128-bit DDR2 memory 400 MHz clock/800 MHz effective memory rate Direct X 10.0, Shader Model 4.0, Dual DVI and HDTV support