Zotac GeForce GTX 770 4GB GDDR5 PCI Express 3.0 DVI HDMI DisplayPort SLI Ready Graphics Card ZT-70304-10P 1536 processor cores256-bit memory bus Engine clock (base): 1059 MHz, (boost): 1111 MHz Shader clock: N/Memory clock: 7010 MHz Display Port 1.2 (4K ready)HDMI 1.4a (4K ready, w/audio)Div.-I (VGA with included adapter)DVI-D (digital only)Quad simultaneous display capableHDCP compliant Dual SLI bridge connectors (3-way) NVIDIA GeForce driver Microsoft DirectX 11.1 (feature level 11_0)OpenGL 4.3Microsoft Windows 7/8 x86/x64 ED 480pHD 720pHD 1080iFull HD 1080pQuad Full HD (4K) NVIDIA GPU Boost technology NVIDIA Adaptive Vertical Sync Technology NVIDIA SMX shade architecture NVIDIA PhysX technology NVIDIA CUDA technology NVIDIA 3D Vision Surround support NVIDIA SLI ready (3-way) 600-watt power supply recommended230-watt max power consumption