Would a 650 watt power supply be enough for sli? Help!

[olikonarider]

I have an ocz zt 650 watt power supply, and i have a gtx 660, i am thinking of getting an extra gtx 660 in the future and use it in SLI, would my power supply have enough watts to run two gtx 660's?
Thanks in advance!

 

[lostsurfer]

"GeForce GTX 660 SLI - On your average system the cards require you to have a 700 Watt power supply unit as minimum." Quoted from: http://www.guru3d.com/articles_pages/evga_geforce_gtx_660_sc_review,7.html

 

[Dark Lord of Tech]

It's a 2 tier power supply and should be enough to power the 2 cards.

 

[MC_K7]

A little tight for my taste, but it should hold on.