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Three GTX 660 Ti's or two GTX 670's?

post #1 of 11
Thread Starter 
I'm stuck between choosing between three GTX 660 Ti's ($300 each) and two GTX 670's ($400 each). As you can see the prices are essentially the same. I will be folding and make CUDA programs. Heat will not be a problem because I am looking at getting this ASRock motherboard [http://www.newegg.ca/Product/Product.aspx?Item=N82E16813157322] with nice spacing for three cards (if I get two 670's I will probably get a third one if they are that much worth it over the 660 Ti's).

Edit: I will be using the cards independently (for folding and CUDA) and not in SLI.
Edited by Beyonder - 3/31/13 at 11:41am
post #2 of 11
GTX 670 SLI = 85 fps = 800$

GTX 660ti Tri-SLI = 96 fps = 900$


This average is with Unigine Valley 1080p.

I would go with 2 x GTX 670
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post #3 of 11
I would go with 2 GTX670's. While the tri-SLi 660Ti setup is slightly faster, the 670 SLi setup allows more room for future expansion.
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post #4 of 11
660ti can be overclocked to compare with a 670, but 3x 660ti is faster than 2x670 no matter what way you cut it.
post #5 of 11
always try to go for the least number of multi GPUs. scaling after 2 cards is very inconsistent. go with GTX 670 SLI. preferably EVGA GTX 670 FTW as the blower design is well suited for multi GPU setups.
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post #6 of 11
Did you guys miss the part where he said he wouldn't be running them in SLI?

For his use, I'd say three cards are better than two.
Edited by 32oz - 4/1/13 at 8:51am
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post #7 of 11
P.S. I'd suggest that you post this question in the folding forum, they'll have a better understanding on how these cards perform while folding.
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post #8 of 11
Thread Starter 
^ True thanks
post #9 of 11

AFAIK GTX 660 Ti's perform pretty much the same as GTX 670s in Folding so i'd go with the 3 of those.
 

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post #10 of 11
Quote:
Originally Posted by 32oz View Post

Did you guys miss the part where he said he wouldn't be running them in SLI?

For his use, I'd say three cards are better than two.

Yes, thats why I posted that 3 is faster than 2. tongue.gif

PPD-wise having an extra GPU core is much better than the wider bus.
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