XFX PVT80FSHF9 GeForce 8800GTX 575MHz 768MB PCI Express x16 SLI Ready Video Card ( Dual DVI / S-Video ) NVIDIA unified architecture - Fully unified shader core dynamically allocates processing power to geometry, vertex GigaThread Technology - Massively multi-threaded architecture supports thousands of independent, simultaneous threads Full Microsoft DirectX 10 Support - World's first DirectX 10 GPU with full Shader Model 4.0 support delivers unparalleled levels NVIDIA Lumenex Engine - Delivers stunning image quality and floating point accuracy at ultra-fast frame rates NVIDIA Quantum Effects Technology - Advanced shader processors enable a new level of physics effects