W1zzard, actually I like your and Kitguru's test quite a lot. Great read. I have no idea what instruments the various websites are using to test. I assumed they know what they're doing and have the right tools. I might be wrong there.
I have done some basic calculations and the higher idle power consumption Techpowerup.com is reporting would cost me a little less than 10 Euro extra a year. Not a dealbreaker although the money adds up when I keep the card for a couple of years.
I have also thought about buying a smaller card like a Radeon 7770, 7850 or 7870. Or a Geforce 660. If I chose one of those I could save a few euro's more. But I decided to spend some of my hard earned money on a Sapphire Vapor-X 7950 even if I'm not that big gamer. I want a good and quiet card and the offer I got was so good that I could not say no
Thanks a lot for doing a second test on the power consumption. You are crazy in a good way for taking time in doing this. I think I will do some experiments if I can get a stable card while undervolting it a bit. I'm looking for forward for next weekend. Right now I have a PC based on a 7 year old AMD Athlon 64 with 1 GB RAM and a 5670 graphics card !!! The new graphics card together with a new Ivy Bridge setup will be a HUGE change