EVGA 512-P3-N802-AR e-GeForce 8800 GT 512 MB DDR3 Superclocked Edition PCI-Express Graphics Card PCI-Express video card with 512 MB of GDDR3 memory Full support for Microsoft DirectX 10.0 Shader Model 4.0 PCI Express x16 compatibility; HDTV and S-Video, Dual DVI-I connectors NVIDIA SLI Technology allows two graphics cards to run simultaneously Built for Microsoft Windows Vista