Power Consumption Question regarding 2-way SLI 780's

oOSlushyOo

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Nov 8, 2013
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Hey guys, I am trying to figure out if 2-way SLI with 780's is possible/probable with my current setup.

Specs:
>Asus Z87-Deluxe
>i7 4770K @ 4.3GHz
>8GBx2 (16GB) of Corsair Vengeance @1866MHz
>Corsair 760i PSU
>2x EVGA GTX 760 OC edition w/ ACX coolers
>WD 2TB 7200/64 Black
>Samsung 840 EVO 250GB
>H100i CPU cooler

I was considering taking advantage of EVGA's Step-Up program to attain two of their ACX cooled 780's. I currently have no issues with the capacity of my current PSU regarding the 760's in SLI, but am concerned that I will be going over the PSU's capacity making this jump. Under PCPartPicker, I noticed that I am still below the Wattage threshold, but am concerned that the system might draw more than advertised, especially with my i7 OC'd already. Estimated Wattage from the site is currently 712W...am I cutting it too close running the 760i PSU with these cards???

PCPartPicker part list: http://pcpartpicker.com/p/2ektC
Price breakdown by merchant: http://pcpartpicker.com/p/2ektC/by_merchant/
Benchmarks: http://pcpartpicker.com/p/2ektC/benchmarks/

Thanks in advance for your responses!

 

rvilkman

Distinguished
Basically you should have an 850W for 2x 780, that being said like listed the 712W estimate means that you should be ok with the 760.

The AX760 is a pretty damn good PSU so most likely it can do it.
But the efficiency suffers a bit and you are pretty close to the maximum wattage.
 

oOSlushyOo

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Nov 8, 2013
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10,860