[bluefluid]

moguce, koliko i7 920 trosi na toj frekvi? 140-150W?? Uz to jos i dvije gtx-ice...

We did some power draw tests on the GTX 280 cards in single and SLI mode on a QX9650 + 790i SLI setup. With single GTX 280 card, the system is drawing 147W at idle and 292.2W at peak and the 3DMark Vantage score is P10324. With GTX 280 SLI, the system is drawing 190.1W at idle and 508W at peak. The 3DMark Vantage score is P15813. Stay tuned for our full review in a few days time.

ovo je sa vr-zone-a

The card according to NVIDIA has a TDP of roughly 237 Watts...

Our test system contains a Core 2 Duo X6800 Extreme Processor, the nForce 680i mainboard, a passive water-cooling solution on the CPU, DVD-rom and a WD Raptor drive. The results:

PC in Idle = 184 Watt
PC 100% usage (wattage gaming Peak) = 363 Watt
The monitoring device is reporting a maximum system wattage peak at roughly 365 Watts, and for a PC with this high-end card, that is not excessive at all. Idle wattage however should have been lower, yet we believe this was a driver issue. We'll check this in future reviews of board-partner products once a new driver arrives.

* Update - with a retail sample it worked fine. IDLE wattage dropped to roughly 155 Watt, really good.

Recommended Power Supply

So here's my power supply recommendation:

GeForce GTX 260 | 280

A GeForce GTX 260 requires you to have a 500 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 38 Amps available on the 12 volts rails.
A GeForce GTX 280 requires you to have a 550 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 40 Amps available on the 12 volts rails.
GeForce GTX 260 | 280 SLI

A second GeForce GTX 260 requires you to have a 700 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 50 Amps available on the 12 volts rails.
A second GeForce GTX 280 requires you to have a 800 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 55 Amps available on the 12 volts rails.

review sa guru3d-a (iako po meni oni nikad nemaju realnu procjenu potrebnog napajanja...)

Ma mislim, daleko od toga da rezultat nije odlican