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650TX or 750TX

post #1 of 6
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I need to know if the GTX 580 would run with the 650TX or would I need a 750TX?
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post #2 of 6
One GTX 580 can run off a single 650TX easily. If you want two GTX 580's, get an 850W PSU.
post #3 of 6
It will power it, but I'd still recommend going with the 750. You won't regret it - especially if in the future you grab a small card for physx or something.
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post #4 of 6
Total system power consumption with a 580 (at the wall):












650W is more than enough for even an overclocked GTX 580. The data above is at the wall. This means the actual PSU is drawing less voltage than measured at the wall. If you plan on getting a second 580, get an 850W PSU.
post #5 of 6
judging by that chart, would you say a 550w is enough to sufficiently power 2 GTX 460 1gb SLI?
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post #6 of 6
Quote:
Originally Posted by JumboShrimp View Post
judging by that chart, would you say a 550w is enough to sufficiently power 2 GTX 460 1gb SLI?
Absolutely. Their test system pulled 496W at the wall which means if the PSU were 85% efficient during that measurement, then we would say that the system pulled about 363W from the power supply. So if we add the recommended ~150W for the rest of the system (in consideration for maximum loads), then we end up with about 512W.

So a quality 550W power supply is more than enough to power a system that has two GTX 460s in it. It would even be plenty to handle a system that has a single GTX 580 in it.
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It's a computer!
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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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