NVIDIA Maxwell architecture pushes the limits in graphics processing capabilities, and also creates an extremely power-efficient GPU. Base clock: 1228/1291 MHz NVIDIA GPU Boost 2.0 Revolutionary DirectX 12.0 API technology 2048 MB, 128-bit memory interface for Hi-Res /AA/AF gaming Support DVI-I ,HDMI and 3 x DisplayPort PCI Express 3.0 support OpenCL support OpenGL 4.4 support