[walrus01]

I was referring to a 600W load as measured at the wall, such as if you plugged a desktop system with a single power supply, and ordinary IEC C13/C14 to NEMA 5-15 male power cord into a kill-a-watt to measure its instantaneous wattage.

Of course the cumulative wattage of all the stuff in a x86-64 type desktop workstation is going to be a different figure than the draw from the AC wall power socket, since even the best power supplies are somewhere around 83-86% efficient in reality. Could easily be 700W, 800W, or some other figure, depending on what CPUs and GPUs a person puts in it.