Palit GeForce 1024 MB GTS450 Sonic Platinum Twin Light Turbo Palit 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card NE5S450LF1101 Microsoft DirectX11 Support, NVIDIA CUDA technology with CUDA C/C++, DirectCompute 5.0 and OpenCL support NVIDIA PhysX technology, NVIDIA SLI Ready, NVIDIA 3D Vsion support NVIDIA 2D Surround support, NVIDIA PureVideo HD technology, PCI Express 2.0 support Dual-Link DVI connectors, One HDMI 1.4a connector Dual-Link HDCP capable, OpenGL 4 support