Zotac GeForce GTX 650 Ti AMP 2GB GDDR5 128bit PCI Express 3.0 Dual DVI Dual HDMI Graphics Card ZT-61103-10M 768 processor cores, Engine clock: 1033 MHz, Memory clock: 6200 MHz Dual DVI (up to 2560x1600), Dual HDMI 1.4a (with audio (8-channel)), VGA (with included adapter), Quad simultaneous display capable, HDCP compliant NVIDIA GeForce driver, Microsoft DirectX 11, OpenGL 4.2, Microsoft Windows Vista/7/8 x86/x64 ED 480p, HD 720p, HD1080i, Full HD 1080p