Here an anantech review:
http://www.anandtech.com/show/5625/amd-radeon-hd-7870-ghz-edition-radeon-hd-7850-review-rounding-out-southern-islands/17
The 7850 in a total system doesnt use more then 289 watts when on Load power consumption
Face the future.. Gamecenter ID: nikkom_nl (oh no he didn't!!)