Quote Originally Posted by Movieman View Post
Buy a damned $20.00 Kill-A-Watt like I did, plug into wall, turn on machine, record the numbers on the little LED at idle, run it up to 50% load, record again, run to 100% load, record again.

Numbers don't lie, marketing depts on all companies at the very least bend the hell out of the facts and quite often lie thru their teeth.
That is why I am a fan of "at the wall" power. I have a bunch of kill-a-watt meters at home and we have lots of them at the office.