Palit GeForce GTS450 Sonic 1024 MB 128-bit GDDR5 x16 HDCP Ready SLI Support PCI Express 2.0 Video Card NE5S450SF1101 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