Zotac NVIDIA GeForce GTX 650 Synergy Edition 2GB GDDR5 2DVI/2HDMI PCI-Express Video Card ZT-61010-10M Chipset: NVIDIA GeForce GTX 650, 1058 MHz Video Memory: 2GB GDDR5, 5000 MHz Bus: PCI-Express 3.0 x16 (Compatible with 1.1) Max Resolution: 2560 x 1600 Connectors: 2x DVI, 2x HDMI Supports: Microsoft Windows Vista/ 7/ 8 (x86/x64), NVIDIA Adaptive Vertical Sync, Blu-ray 3D, etc. Memory Interface: 128-bit, 5000 MHz