Zotac GeForce GTX 650 2GB GDDR5 PCI Express 3.0 Dual HDMI Dual DVI Graphics Cards ZT-61002-10M 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. Dual DVI (Up to 2560x1600), Dual HDMI 1.4a (w/audio (8-channel)), VGA (with included adapter), Quad simultaneous display capable, HDCP compliant NVIDIA GeForce driver, Microsoft Directx 11.1, OpenGL 4.2, Microsoft Windows Vista/7 x86/x64 Blu-ray 3D ready, HDMI xvYCC Color & Deep Color technologies, Lossless audio bit stream capable