Gigabyte GeForce GTX 660 Ti 2GB GDDR5 PCI-Express 3.0 DVI x 2/HDMI/Display Port SLI Ready Graphics Card GV-N66TWF2-2GD Ultra Durable VGA - GPU Temperature 5% 10% down - Overclocking capability 10% 30% up - Power Switch Loss 10% 30% down WINDFORCE 2x with Triangle Cool technology Core Clock: Base: 941MHz/Boost: 1019MHz - Memory Clock: 6008MHz Features DVI-I/DVI-D/HDMI/Displayport outputs with HDCP protection Supports NVIDIA SLI/3D Vision/CUDA/PhysX Technology Recommended minimum System PSU 450W with two 6-Pin PCI-E power connectors