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GTX680 vs GTX660x2 - Page 2

post #11 of 34
Quote:
Originally Posted by Solar71 View Post

Yes there is a 670 option. But I wanted the power of a 680. Just withou the price.
2 x 670s are very expensive.

That amazing "power of 680" is only 4.5% more than 670 on average, you can't even visualize the FPS difference without a FPS counter.





If you believe you can visualize the difference between 66 FPS and 72 FPS without a FPS counter, you can see the benefit of the extra $60-$100 spent on either 660 SLI or 680.
Edited by sherlock - 10/17/12 at 8:15pm
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post #12 of 34
Thread Starter 
Quote:
Originally Posted by sherlock View Post

That amazing "power of 680" is only 4.5% more than 670 on average, you can't even visualize the FPS difference without a FPS counter.


If you believe you can visualize the difference between 66 FPS and 72 FPS without a FPS counter, you can see the benefit of the extra $60-$100 spent on either 660 SLI or 680.

Thanks for the repley. But let me say that the 2 x 660 is 97$ LESS then a single 680.
That makes the 2 660 cards almost the same price as a single 670.

Also someone earlier said that the 2 660's would perform substantialy BETTER then a single 680.
So maybe more the 5%. possible 10% maybe?
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post #13 of 34
I hope you will be happy with micro-stuttering, limited upgrade-ability and all other issues that come with the SLI, that seems to be a good trade off for the extra 10 FPS you can't notice without an FPS counter. It is your money.

p.s if this were a home-built system, buying factory OCed 670 would be a far better choice as they can meet or exceed stock 680 with ease, and go even further with OC. But since you are limited to a pre-built system right now and must chase the extra 10 FPS and micro-stutters 660 SLI is your best bet.
Edited by sherlock - 10/18/12 at 9:02am
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post #14 of 34
Quote:
Originally Posted by sherlock View Post

I hope you will be happy with micro-stuttering, limited upgrade-ability and all other issues that come with the SLI, that seems to be a good trade off for the extra 10 FPS you can't notice without an FPS counter. It is your money.

SLI for 1 year here, not a single stutter.
I smoke 580's.

I would do it again with 660Tix2 over a 680 if you don't mind having to get rid of them if you want to upgrade (Which is what I do anyway).

Some games might not like SLI but so far all my games are running perfectly fine.
Edited by Abs.exe - 10/18/12 at 9:10am
post #15 of 34
Quote:
Originally Posted by sherlock View Post

I hope you will be happy with micro-stuttering, limited upgrade-ability and all other issues that come with the SLI, that seems to be a good trade off for the extra 10 FPS you can't notice without an FPS counter. It is your money.

Really wouldn't worry about SLI issues, they don't seem to affect everyone or not everyone can notice it. 2 660's perform about 10-15% better than a GTX 680. Linus did a good comparison but with to 660ti's and the result was 20% than then 680.

Linus video - http://www.youtube.com/watch?v=BJI8f81a9IA
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post #16 of 34
Quote:
Originally Posted by Abs.exe View Post

SLI for 1 year here, not a single stutter.
I smoke 580's.
I would do it again with 660Tix2 over a 680 if you don't mind having to get rid of them if you want to upgrade (Which is what I do anyway).
Some games might not like SLI but so far all my games are runnign perfectly fine.

Exact opposite experience here. I once had 6850 in CF that actually felt slower than a single 6950, despite the frame rate counter constantly telling me otherwise. I will never do SLI/CF again because of that (microsutter). Single card is the way to go, unless you absolutely need more power for very high resolutions.

Unless you're getting at least a 50% higher frame rate with dual card over single, then I wouldn't do it. At least at 50% you'd pretty much guarantee that even with microstutter, it would still feel faster than the single card.
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post #17 of 34
Thread Starter 
Just wondering.
Are there some games that will not use the second card ?
I know you guys said that some games will not "LIKE" SLI but does that mean they will not recieve any benefits in FPS?
Also one more question. If i have 2gigs of Vram on each card will I essentially have 4gigs total? or will some games not see the extra 2 gigs on the second card?

Reason I ask is... some people say with 2 cards you dont get exactly double the performance. There are some inefficientcy issues.

Thanks again
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post #18 of 34
Quote:
Originally Posted by Creator View Post

Exact opposite experience here. I once had 6850 in CF that actually felt slower than a single 6950, despite the frame rate counter constantly telling me otherwise. I will never do SLI/CF again because of that (microsutter). Single card is the way to go, unless you absolutely need more power for very high resolutions.
Unless you're getting at least a 50% higher frame rate with dual card over single, then I wouldn't do it. At least at 50% you'd pretty much guarantee that even with microstutter, it would still feel faster than the single card.

I stopped reading here : "Exact opposite experience here. I once had 6850".

That is AMD.
We are talking about SLI and NVIDIA.
post #19 of 34
Quote:
Originally Posted by Solar71 View Post

Just wondering.
Are there some games that will not use the second card ?
I know you guys said that some games will not "LIKE" SLI but does that mean they will not recieve any benefits in FPS?
Also one more question. If i have 2gigs of Vram on each card will I essentially have 4gigs total? or will some games not see the extra 2 gigs on the second card?
Reason I ask is... some people say with 2 cards you dont get exactly double the performance. There are some inefficientcy issues.
Thanks again

2Gb on each GPU will result in 2Gb available in games.

It doesn't stack as in 2+2...

There are lists of unsupported games online if you really want to know.
post #20 of 34
Quote:
Originally Posted by Abs.exe View Post

I stopped reading here : "Exact opposite experience here. I once had 6850".
That is AMD.
We are talking about SLI and NVIDIA.
Irrelevant when both use AFR. There's no difference between SLI and CF in that regard.
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