I understand it because I'm neurotic that way. I want my pc to use as little power and generate as little heat as possible, without sacrificing performance.I'm honestly baffled at this article's fixation on power use. I have a Red Devil 6950-XT -- it is undervolted and runs at 1065 mV, which peaks at 260W under FULL benchmark load. Anyway, I know the 4070 runs at around 200W out of the box, but still... 6950-XT cards do not need THAT much power to hit 2600 MHz. Between that and undervolting a 7950X, my system runs on a 600W power supply easily.