Zotac GeForce GT 630 1GB GDDR3 PCI Express 2.0 DVI mini-HDMI VGA Passive Cooling Graphics Card ZT-60408-20L NVIDIA GeForce GT 630 GPU384 processor cores 64-bit memory bus Engine clock: 902 MHz, Memory clock: 1800 MHz, PCI Express 2.0 (compatible with 1.1) DVI (Up to 2560x1600), mini-HDMI 1.4a (with audio (8-channel), VGA Triple simultaneous display, capable HDCP compliant NVIDIA GeForce driver Microsoft Direct X 11.1 (feature level 11_0), Open GL 4.3 Microsoft Windows 7/8 x 86/x64 ED 480pHD 720pHD 1080iFull HD 1080p 300-watt power supply recommended, 25-watt max power consumption 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. Passive silent cooling (dual-slot)