GTX 770 sli questions

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Vitric9

Vitric9

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Jan 26, 2014
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I am using a PNY GTX 770 2gb. Would like to add one more maybe Evga or Gigabyte. I know most GTX 770 card have a 600w and 42a PSU requirement I read a few different sites and the highest was 850w minimum and others said between 700w and 800w. Then there are sites that say how much power they pull from the wall which is a lot higher than the TDP which is around 400-450w. I know for a fact that my card never runs at 100% power. The highest it ever reached was in Crysis 3 and it peaked at 92% most games it hovers around 75%. I don't want to kill my components. So Again is the AX760 enough for a GTX 770 SLI, and the other components??? and I think a i7 3770k@stock is about 110w at full load
 
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Liberatas
Hi Vitric,

You're right to be suspicious about articles and many of the websites suggesting TDP's of 400+ and figures that are all over the shop. A reference GTX 770 will never ever use more than 230 Watts. That's its max. I have a Galaxy 780 Ti and it does not use more than 250 watts. The gigabyte can vary between 230- 280 if you have the three fan cooler.

Now the GTX 770 EVGA SC 4gb edition is a bit of a beast. It packs quite the punch considering the high VRAM and it's cooling is superb. Yet it doesn't go over 250 watts power consumption. The things you have been reading are simply not true. If you are to use two GTX 770's in SLI with a 750w PSU you will be perfectly fine. The only way this would not be okay is if you had more...
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Liberatas

Liberatas

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Jan 6, 2014
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Hi Vitric,

You're right to be suspicious about articles and many of the websites suggesting TDP's of 400+ and figures that are all over the shop. A reference GTX 770 will never ever use more than 230 Watts. That's its max. I have a Galaxy 780 Ti and it does not use more than 250 watts. The gigabyte can vary between 230- 280 if you have the three fan cooler.

Now the GTX 770 EVGA SC 4gb edition is a bit of a beast. It packs quite the punch considering the high VRAM and it's cooling is superb. Yet it doesn't go over 250 watts power consumption. The things you have been reading are simply not true. If you are to use two GTX 770's in SLI with a 750w PSU you will be perfectly fine. The only way this would not be okay is if you had more than 2 SSD's with 4 HDD's and were OCing your i7.
The i7 3770k is actually 97w if you're using it at 100% which is most often not the case.

If you have more questions I'd suggest using a Power Supply Wattage Calculator.

Long, long story short.
You'll be sweet!

Game on!
 
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