GIGABYTE GeForce GTX 570 1280MB GDDR5 PCI Express 2.0 2x DVI-I / mini-HDMI SLI Ready Graphics Card, GV-N570OC-13I Rev2.0 Powered by NVIDIA GeForce GTX 570 GPU and Integrated with industry's best 1280MB GDDR5 memory and 320-bit memory interface GIGABYTE Ultra Durable VGA - GPU Temperature 5% ~ 10% down - Overclocking capability 10% ~ 30% up - Power switch loss 10% ~ 30% down WINDFORCE 3X - Vapor chamber - Outward Inclined Anti-Turbulence Cooling. Features DVI-I / DVI-D / HDMI / Displayport outputs with HDCP Protection Core Clock: 780MHz - Memory Clock: 3800MHz Recommended minimum Power Supply 600W or greater with two 6-pin PCI-E power connectors Supports NVIDIA SLI / CUDA / PhysX / 3D Vision Technologies