ECS GeForce GTX550Ti 1024MB GDDR5 PCI Express 2.0 DVI/Mini HDMI Graphic Card NGTX550TI-1GPL1-F1 Mini HDMI Output NVIDIA 3D Vision Surround Ready OpenGL 4.1 Optimizations and Support Microsoft DirectX 11 Support NVIDIA PhysX Ready NVIDIA PureVideo HD Technology NVIDA CUDA Technology Windows 8 Support