Zotac GeForce GT 630 4GB DDR3 PCI Express 2.0 Dual DVI HDMI Graphics Card, ZT-60405-10L 96 processor cores, 128-bi memory bus, Engine clock: 810 MHz, Shader clock: 1620 MHz, Memory clock: 1066 MHz, PCI Express 2.0 (compatible with 1.1) NVIDIA GeForce driver, Microsoft DirectX 11, OpenGL 4.2, Microsoft Windows XP/Vista/7 x86/x64 NVIDIA Adaptive Vertical Sync technology, NVIDIA Unified Architecture, NVIDIA PhysX technology, NVIDIA CUDA technology, Hardware Video Decode Acceleration, Blu-ray 3D ready, HDMI xvYcc Color & Deep Color technologies, Lossless audio bit stream capable Dual DVI (Up to 2560x1600), mini-HDMI 1.4a (w/audio (8-channel)), VGA (with included adapter), Dual simultaneous display capable, HDCP compliant ED 480p, HD 720p, HD 1080i, Full HD 1080p 300-watt power supply recommended, 65-watt max power consumption