Zotac GeForce GTX 650 1GB GDDR5 PCI Express 3.0 Mini-HDMI DVI Dual DVI Graphics Cards ZT-61001-10M 384 processor cores, 128-bit memory bus, Engine clock: 1071 MHz, Memory clock: 5000 MHz, PCI Express 3.0 (compatible with 1.1) NVIDIA Adaptive Vertical Sync technology, Surround technology, NVIDIA Unified Architecture, NVIDIA PhysX and CUDA technology, Hardware Video Decode Acceleration, Blu-ray 3D ready, HDMI xvYCC Color & DeepColor technologies, Lossless audio bitstream capable Dual DVI (Up to 2560x1600), Mini-HDMI 1.4a (w/audio (8-channel)), VGA (with included adapter), Triple simultaneous display capable, HDCP compliant NVIDIA GeForce driver, Microsoft DirectX 11.1, OpenGL 4.2, Microsoft Windows Vista/7 x86/x64