Upgrading to GTX 670; PSU question.

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Enjoi

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Jul 31, 2012
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Hello, I'm swapping out my 4850 and I'm wondering if my 750 PSU will be enough for the GTX 670.

The reason I ask is because ASUS's power supply calculator leads me to believe I will need a 900+ PSU.
 
Solution
The most important thing is that the +12V rail(s) has the capacity (amps) to run the card. The GTX 670 requires 173W at max load. That translates into 14.4A on the +12V rail. http://forums.atomicmpc.com.au/index.php?showtopic=264

Unless your 750W PSU is a real cheapie, it should be more than enough. You might want to run the numbers thru a different calculator like this one: http://www.thermaltake.outervision.com/

I don't know how you could have come up with a 900W+ result unless you entered something wrong.

clutchc

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The most important thing is that the +12V rail(s) has the capacity (amps) to run the card. The GTX 670 requires 173W at max load. That translates into 14.4A on the +12V rail. http://forums.atomicmpc.com.au/index.php?showtopic=264

Unless your 750W PSU is a real cheapie, it should be more than enough. You might want to run the numbers thru a different calculator like this one: http://www.thermaltake.outervision.com/

I don't know how you could have come up with a 900W+ result unless you entered something wrong.
 
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