WINDFORCE 3X 600W cooling system Flex Display Technology Powered by NVIDIA GeForce® GTX 980 TI GPU Integrated with 6GB GDDR5 memory 384-bit memory interface Features Dual-link DVI-I / Dual-link DVI-D / HDMI / DisplayPort*3 Boost:1279 MHz/ Base: 1190 MHz in OC Mode Boost:1241 MHz/ Base: 1152 MHz in Gaming Mode Recommended system power supply requirement: 600W(with two 8-pin external power connectors)