Does the PS3 use much more power than the XBox 360 and the Nintendo Wii?

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I'm not sure about the actual power consumption, but in some tests they made for 360, it used 170W. Wii transformer unit gives out 36W, so it uses less than that, WiiConnect on while standby, it uses less than 5W (i can make a test with Wii, since i have a meter for it). And in comparision to GC, it had 39W transformer.
And if i recall, PS3 had 480Watts transformer unit.

Also certain peripherals require power, some get their power from the console, some from the grid and some from batteries.