PNY GeForce GTX 780 3GB CC OC Graphics Cards VCGGTX7803XPB-CC-OC Full aluminum construction for ultimate heat dissipation, rigidity and performance High Quality full metal back-plate to protect and improve the overall cooling performance Five massive heat pipes and two large Ball Bearing fans to ensure long lasting silent and cool operation Large Cooper base plate directly touching the GPU surface to maximize heat transfer 8-Phase PWM to stabilize the voltage supply to GPU and improve overclocking ability