The marketing material included with the card claims NVIDIA requires at least a 450W power supply for a single GeForce 8800GTX, and 400W for the 8800GTS. Top tier vendors in Taiwan have already confirmed with DailyTech that GeForce 8800 cards in SLI mode will likely carry a power supply "recommendation" of 800W. NVIDIA's GeForce 7950GX2, currently the company's top performing video card, carries a recommendation of 400W to run the card in single-card mode.
So... 800W PSU if you wish to run SLI on these babies. Add in the ~100W for your CPU and then another ~100W for your other stuff... then a 1KW PSU is the bare minimum. Even that would be unsafe... so 1.1KW is the only option. Not to mention the addition of water cooling, and all this jazz...
Time to learn how to daisy chain PSU's guys.
http://www.dailytech.com/article.aspx?newsid=4442
So... 800W PSU if you wish to run SLI on these babies. Add in the ~100W for your CPU and then another ~100W for your other stuff... then a 1KW PSU is the bare minimum. Even that would be unsafe... so 1.1KW is the only option. Not to mention the addition of water cooling, and all this jazz...
Time to learn how to daisy chain PSU's guys.
http://www.dailytech.com/article.aspx?newsid=4442