Geforce GTX 480 TDP at 250W
 

Fermi's TDP stirred up quite a bit of speculation, but we finally have some exact numbers. The TDP is not close to 300W as many have suggested before, it's 250W. This is much higher than the 188W TDP of Radeon HD 5870, but as long as Fermi Gefroce GTX 480 runs stable, it should satisfy its proud owners. The GTX 470 will obviously have a slightly lower TDP, probably slightly higher than HD 5870's TDP.

http://www.fudzilla.com/content/view/18170/34/