"The XFX GeForce 8600 GT is a single slot design that requires no additional power connector for operation. This makes the board very energy efficient as it has a maximum power draw of just 43 watts. The XFX GeForce 7600 GT has a is maximum power draw of 65 watts while the GeForce 6600 GT is 70 watts. For the third generation in a row NVIDIA has been able to decrease the power consumption on their mainstream video cards while adding features and improving performance, which is amazing and something for them to brag about."