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Will i5-760 @ 4GHz bottleneck GTX 570 SLI?

post #1 of 11
Thread Starter 
I have another GTX 570 HD arriving tomorrow for two-way SLI.

I was wondering what the bottleneck is for GTX 570 SLI. Basically, what I'm asking is, will my i5-760 overclocked to 4GHz allow both GPUs to operate at 99% usage?

I'm not asking "will I see an increase in performance?" or "will it play games smoothly?"

Thanks! I know this is a tough question to answer.
Edited by pnoozi - 11/6/11 at 10:37pm
    
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post #2 of 11
As you can see, those are still good chips that're, at 4 Ghz, capable of driving that setup with minimal bottleneck.

http://www.anandtech.com/bench/Product/191?vs=47

They perform a bit below Nehalems. One can say that one performs like a 3.6 i7 920. Good thing is, they don't suck much power/run as hot as the Nehalem.
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post #3 of 11
Bottlenecking is totally dependent on the application in question. If you benching in SuperPi, yes, the i5 will still bottleneck you. If you're gaming, most likely not. Very, very few games would be CPU bottlenecked with your rig.
post #4 of 11
the gest of it.. no bottleneck. the i5-760 is great.
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post #5 of 11
Quote:
Originally Posted by Nnimrod;15601035 
Bottlenecking is totally dependent on the application in question. If you benching in SuperPi, yes, the i5 will still bottleneck you. If you're gaming, most likely not. Very, very few games would be CPU bottlenecked with your rig.

Yeah but, SuperPi wouldn't really classify as a "bottleneck". It's a single threaded bench to test CPU only. There's nothing else to get bottlenecked (like GPU).

And yes, OP, you'd only see a few frames difference on a faster CPU. That chip is capable and a faster GPU is what you should opt for.
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post #6 of 11
You should not experience any bottleneck at those speeds smile.gif
A i7 920 @ 3.8ghz can do tri sli 580 without bottleneck if I don't remember wrong! So yours should be just fine!

Except if you are benchmarking of course, but in games not at all!
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post #7 of 11
your cpu would not bottleneck at all, even with a gtx 580 sli you still won't have a bottleneck. so you good to go thumb.gif.
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post #8 of 11
I don't know really know if this is correct what is being said. Tri SLI with 570's was bottlenecked on my CPU with a OC on at less two applications. I think you could have a bottleneck on BF3 with 570 SLI but that would be one of the only games I think would do it. But you could be fine but I think you get up into 90-100 percent in BF3 but I don't really know for sure.

Edit nevermind I just saw 760 is quad core I thought was a dual core
Edited by UNOE - 11/6/11 at 11:07pm
 
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post #9 of 11
There still will be a little bit of a difference to be seen on a faster chip (it's not "zero" bottleneck). However, the thing is, a faster GPU will surpass a faster CPU. That's why you should go SLi instead.

http://www.hardwarecanucks.com/charts/index.php?pid=59,70&tid=5
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post #10 of 11
Thread Starter 
But let's say I did GTX 560 SLI instead of GTX 570 SLI... would there be a difference in framerate?
    
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