670 SLI power consumption

[chugginmilk]

Cpu Intel i5 3750K ivy-bridge
GTX 670
GTX 670

I am planning on getting a 850w power supply is this going to be enough power to support these 3 things along with everything else? I am planning on overclocking everything, not going to go crazy on the overclock tho just slightly.

Thank you in advance!!!!

 

[rolli59]

Yes 850watt is plenty! Gives a nice headroom but 750watts would be enough.

 

[chugginmilk]

Best answer selected by chugginmilk.