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Questions regarding power supply and SLI

#1aak57Posted 2/18/2014 11:44:38 AM(edited)
I currently have a 670 FTW and have been debating picking up another since I now run 1440p and it makes more financial sense than moving to a 780 or something (yes, it's only 2GB but from what I've seen that actually doesn't matter and by the time it will I'll get something new). However, I am rather uncertain that my PSU can actually support the SLI. I have a PC Power and Cooling Silencer MK III 600W as well as a 3570K OCed to 4.5 GHz at 1.24V.

Now, I know the obvious answer is "no you need 750W" but I've been doing research and the benchmarks I've seen show that a 680 SLI system (essentially what I'd be running) uses up to...475W? Even with my OC very likely drawing more watts, it still wouldn't be anything dramatic I'd think.

http://www.guru3d.com/articles_pages/geforce_gtx_680_sli_review,4.html

And furthermore, I've looked at reviews for my PSU and a couple sites say that they were able to get 712W from it before it shuts down. So does that mean my PSU can actually supply more than is stated, or is this just something specific resulting from testing methods?

http://www.hardwaresecrets.com/article/PC-Power-and-Cooling-Silencer-Mk-III-600-W-Power-Supply-Review/1432/9


So basically, think I'll be fine? Numbers seem to indicate yes, but would I be running too close for comfort? I know that it'd make more sense to just buy a PSU along with the new 670 but I just want this to be a kind of "cheap" stopgap until a 20nm high end maxwell card or whatever finally comes out.
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#2ShubPosted 2/18/2014 11:48:48 AM
Go for it, it'll be fine.
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-What is best in life?
-To crush your enemies, see them driven before you, and to hear the lamentation of the women.