The 8-pin connector is able to deliver two times the power to the graphics card, 150W versus 75W. As any experienced OC’er will tell you, often times you need more juice (power) to get a stable OC. When overclocking the CPU, many enthusiasts will increase the voltage by 10% or more. By integrating an 8-pin power connector instead of a 6-pin connector, Palit is seriously upping the amount of juice that the card draws.