FUD Zilla claims ATI is having troubles with the power consumption of the Radeon HD 5870 X2 graphics card, the site heard the current TDP of the card is a whopping 376W. So far the power hungriest graphics card is the GeForce GTX 295, that card has a 289W TDP.
Even if they use downclocked Radeon 5850 cores that run at 725MHz, the power goes down by only 36W (2x170W) to 340W. The hottest card from ATI so far was HD 4870 X2 that had TDP of 286W. To release a Radeon HD 5870 X2 card ATI should go down at least to 300W, especially due to thermal issues, but who knows, maybe ATI will launch 300W+ card.