sli 970 psu requirement

[phray]

i have would like to upgrade to dual 970 and i would like to know if my corsair RM750 is enough

 

[mrminivee]

That could be on the edge for 970 SLI, You could get an 850W to be safe

 

[barto]

You'll be fine. The 970 is a very efficient GPU. You could do SLI on 600 watts.

 

[Jdogz427]

I would go with 850 watt to give headroom
http://pcpartpicker.com/part/cooler-master-power-supply-rs850afbag1us (Coolermaster V series)
http://pcpartpicker.com/part/corsair-power-supply-cmpsu850hx (Corsair HX series)
http://pcpartpicker.com/part/seasonic-power-supply-x850 (Seasonic X series)
These are all good 80+ gold choices

 

[barto]

Sigh. Again, 750w is more than enough. Even if you used an AMD 8xxx, 750 watt would still be fine. You only upgrade if you want to.

http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/67652-nvidia-gtx-970-sli-performance-review-4.html