One of the biggest highlights at Corsair's booth during CeBIT this year was that of an extremely efficient PSU running QuadFX, 8800s in SLI, 4GB of OCed memory, 150GB raptor etc. - One would still think theres no way all thats happening without an extremely high quality 850W or more PSU... However this one on display was rockin' along without breaking a sweat with a mere 620W rating.
The Inquirer have full details on it here.
HOW MUCH POWER do you actually need to run two water-cooled Socket 1207 CPUs at 3.0 GHz each, two overclocked Nvidia GeForce 8800GTS graphics cards, 150GB Raptor drive and 4GB of memory clocked at a fast 1GHz PC2-8000 clock?
If you ask around the show, you will get answers ranging from 850 to 1200 watts, but engineers at Corsair managed to produce incredibly efficient power supply. Rated at only 620 watts, this one offers nearly 90% efficiency and is able to support four hot chips, ton of memory and Raptor hard drives. Even the water-cooling setup is powered by that puny PSU.