GeForce 8400 GS Graphics Card have world's first DirectX 10 GPU with full Shader Model 4.0 support delivers unparalleled levels of graphics realims and film-quality effects. PCI Express 2.0, Now you are ready for the most demanding graphics applications. Massively multi-threaded architecture supports thousands of independent simultaneous threads, providing extreme processing efficiency in advanced, next generation shader programs. Advanced shader processors architected for physics computation enable a new level of physics effects to be simulated and rendered on the GPU.