If I were to get a GTX 580 instead of the 570, what would be the needed power supply? I know you guys discussed it a bit, but I didn't really get a final answer on it.
Also, if I do get a 580, which 580 should I get?
My check was late so was not able to order yet, but it finally came in today so tomorrow I can start ordering. It also was bigger than I thought, so I might want to pump a bit more power into the PC even if it's a bit more expensive, which is why I'm asking about the 580 and needed power supply.
Thanks again for all the advice guys, you have no idea how much it helps, and I'm sorry if bumping the thread is annoying, I just figure it's better to bump a thread with all the info of the build in it for the question, rather than making a whole new thread.
One of the reasons no one here is recommending a 580 is that they can be hot and loud, as well as raise your power bill. If there's no immediate need for one, you'd be better off selling your 570 next year and buying a "670" (or whatever its actual name will be) which, judging from experience with past generations, will match or exceed the performance you'd expect from a 580.
My advice: If you're considering using Nvidia's "3D Vision" and therefore require 60+ fps at all times, or if you simply MUST be able to turn Ubersampling on in The Witcher 2, get a 580. Otherwise...
In terms of which 580 to get, remember that you're already paying an arm and a leg. Buying one from a reputable manufacturer with a good track record in terms of honoring warranties (I'm thinking EVGA) wouldn't cost you much more.
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The above parts look fine, but I'd trust mfenn when it comes to selecting a power supply. Remember that the 490W Anand noted (
http://www.anandtech.com/bench/Product/305) is the full power draw for the system
at the wall, not the amount of power draw from the GPU specifically or even from all components in his test system combined. It's the power draw of the entire system in FurMark (perhaps the best application in existence for stressing GPUs) AFTER passing through a power supply which might only be 80-90% efficient.
If you want to assume that the PSU is 90% efficient, subtract 10% to get the draw of the system's components: 450W. 550W, then, should be gracious plenty.
If you want to play it safe and assume 100% efficiency, that's still only 490W. Again, 550W is plenty.
650W still isn't completely unreasonable unless you're spending too much for it. Unfortunately, with that Corsair model, you are.
Please note that 550W is plenty only if the power supply itself can actually handle close to what it's rated for. Some can't, but there are people on these forums who can help you distinguish quality from crap when it comes to PSUs. (Unfortunately, I'm not one of them.)
You, BTRY B, and zi0n have thoroughly deconstructed the so-called build fairly well though. :thumbsup:
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