Less power, same if not more heat.
This is wrong. See below.
The GTX480 is a great card, but it is also the most power-guzzling single-GPU card ever created.
To answer Leyawiin's question, the 8800gtx would be close to the HD5870 is power use, extrapolating from the two graphs above. Thus, the GTX480 would use approximately 100w more than the 8800gtx.
To the person who said he had two in SLI running at 480w, I'd say that's pretty surprising. My two 5850s on an i7-860 use 410w at load. I'd guess the 480SLI should be at the minimum 100w higher. The graph above actually shows the 480SLI set at 200w over 5870CF.
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