EVGA GeForce GT 720 2GB DDR3. Base Clock: 797 MHZ Memory Clock: 1800 MHz Effective CUDA Cores: 192 Bus Type: PCI-E 2.0 Memory Detail: 2048MB DDR3 Memory Bit Width: 64 Bit Memory Speed: 1.43ns Memory Bandwidth: 14.4 GB/s NVIDIA PhysX technology PCI Express 2.0 support NVIDIA Adaptive Vertical Sync Microsoft DirectX 12 API (feature level 11_0) Support NVIDIA 3D Vision Ready*** NVIDIA CUDA Technology OpenGL 4.4 Support OpenCL Support NVIDIA FXAA Technology NVIDIA PureVideo HD Technology Max Monitors Supported: 3 240Hz Max Refresh Rate Max Analog: 2048x1536 Max Digital: 2560x1600 300 Watt or greater power supply with a minimum of 20 Amp on the +12 volt rail.**** PCI Express PCI Express 2.0 or PCI Express 3.0 compliant motherboard with one graphics slot. Windows 8 32/64bit Windows 7 32/64bit Windows Vista 32/64bit Windows XP 32/64bit