Would a 750W PSU be ok for a GTX 780

Peppered

Senior member
Jul 3, 2009
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I have a older Seasonic 750w PSU that I wondered if it would be good enough for a GTX 780 that I won't over clock. This would be for my wife I have the 780 and a 2560x1440 27" monitor I want her to use for photo shop. If the PSU will not work I will just let her use the GTX 680 and make due.
I will keep the 780 for my new 144hz Eizo Monitor, if the old PSU wont drive it.
 

guskline

Diamond Member
Apr 17, 2006
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Sure see the specs in my rig 2 below. Using an Antec Gamer 750 Watt with 3770k OC'd to 4.5Ghz and an EVGA GTX780 Classified. PLENTY of power.
 

Termie

Diamond Member
Aug 17, 2005
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Even overvolted with a big overclock, my previous 780 only pulled about 260w from the wall. At reference clocks it drew 200w with a gaming load. I assume a photoshop load will be less taxing.
 

Kenmitch

Diamond Member
Oct 10, 1999
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How old is older? Should be fine but power supplies do tend to degrade with time.
 

DigDog

Lifer
Jun 3, 2011
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also, does she have the 8 pin cpu connector? older psu might not have it.
 

ashenburger

Junior Member
Aug 13, 2012
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As other have said you will be fine with the 750W psu. I have one and run a mildly overclocked 780 on it.
 

Bateluer

Lifer
Jun 23, 2001
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It would actually be fine for two.

Doubt it. Perhaps with a pair of lower TDP cards though.

To be clear to the OP, though, there will be no benefit to using a 780 over a 680 solely for Photoshop.

Agreed. No point at all. Adobe CS does have video card optimizations, but not where you're going to see much difference between a 100 dollar video card and a 700 dollar video card.
 

lavaheadache

Diamond Member
Jan 28, 2005
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my overclocked 780 ti sli/4770k setup barely breaks 600 watts at peak. People tend to over estimate power needs of hardware.