ATI and NVIDIA have been briefing power supply manufacturers in Taiwan recently about what to expect for next year?s R600 and G80 GPUs. Both GPUs will be introduced in late 2006 or early 2007.

The new GPUs will range in power consumption from 130W up to 300W per card. . . . You will see both higher wattage PSUs (1000 - 1200W) as well as secondary units specifically for graphics cards.

Overclockers.com