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Gtx 580

post #1 of 48
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750 watt is enough for 2 Gtx 580?
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post #2 of 48
both on full load will need 500W, maybe 850W?
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post #3 of 48
Depends. Depends on what else you have. Depends on what 750W unit we're talking about.

I would grab a quality 850W, personally.
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post #4 of 48
One cards wants 650W, so two cards will need more then 750W.

Especially if you decide to overclock CPU/GPUs.

I'd go with a 1000W unit to be safe.
 
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post #5 of 48
Quote:
Originally Posted by Gunderman456 View Post
One cards wants 650W...
This is absolutely not true.
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post #6 of 48
Quote:
Originally Posted by Gunderman456 View Post
One cards wants 650W, so two cards will need more then 750W.
A single 580 does not use 650W.
post #7 of 48
Quote:
Originally Posted by Gunderman456 View Post
One cards wants 650W, so two cards will need more then 750W.

Especially if you decide to overclock CPU/GPUs.

I'd go with a 1000W unit to be safe.
No way, my over clocked 480 with a over clocked 965@4.0ghz barely pulls 500w at full load, 750w is enough but if you want to over clock better be safe an get a 800w-850w.
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post #8 of 48
It depends on the PSU - I have run two 580's off my unit with no problems at all.
post #9 of 48
Quote:
Originally Posted by Gunderman456 View Post
One cards wants 650W, so two cards will need more then 750W.

Especially if you decide to overclock CPU/GPUs.

I'd go with a 1000W unit to be safe.
maybe you mean the whole system

but you are still wrong

http://www.gpureview.com/GeForce-GTX-580-card-637.html each one needs 244W

my system with two 460 pulled 462W furmark+intel burn test
http://www.pcdiga.net/showthread.php...-SLI-Concluido read post 2
Edited by dr.noob - 5/6/11 at 10:38am
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post #10 of 48
It's not, I just came from an Corsair TX750W and it definitely throttled... The cards didn't get enough power and I noticed a constant lag every 2 seconds or so... Unplayable with settings on max(Metro 2033) and 3dmark11... My system was stock but I had 2 SSD's, 2HDDs, and a case with 6 fans...
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