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Effects of SB OC on single GPU performance (tests at 4.2 and 5.0ghz)

post #1 of 45
Thread Starter 
Results include 3dmark Vantage and 3dmark11. To cut to the chase single GPU performance is completely unaffected in 3dmark vantage and 3dmark11 after 4.2 ghz on this 2500k.

For this test GPU was left at stock 797/1950 and CPU was ran in 100% stable configurations of 4.2 and 5.0 ghz (stability proof upon request). My testing reflects only benchmark scores, game performance will differ depending on how CPU intensive the game engine is.

3dmark11 tests further down


Edited by Scorpion667 - 5/6/11 at 11:29pm
    
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post #2 of 45
Interesting. Care to throw a few more engines at it?
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post #3 of 45
Thread Starter 
I'm planning to add 3dmark11 as well as Black Ops average FPS as recorded using fraps. Will take requests for any free benchmarks like Heaven, Resident Evil 5 etc. It would be cool if someone with Crossfire/sli could run similar tests
Edited by Scorpion667 - 5/6/11 at 10:57pm
    
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post #4 of 45
ummm yeah, your cpu isn't a bottleneck
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post #5 of 45
Quote:
Originally Posted by GIPrice View Post
ummm yeah, your cpu isn't a bottleneck
Good gravy you can't be serious?
post #6 of 45
Try GTA4 please. I think you will see a difference there, and dont use the in-game benchmark. The GTA4 built in benchmark is way less complex than typical gameplay for that game.
    
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post #7 of 45
Quote:
Originally Posted by eggs2see View Post
Good gravy you can't be serious?
Why are you trying to be an ass? I have no idea why op thought overclocking cpu would bring better gpu results.
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post #8 of 45
Thread Starter 
Quote:
Originally Posted by Kirby1 View Post
Try GTA4 please. I think you will see a difference there, and dont use the in-game benchmark. The GTA4 built in benchmark is way less complex than typical gameplay for that game.
I don't own GTA4 else I would, sorry. I'm sure you are right, it's a CPU intensive game from what I'm hearing.

Quote:
Originally Posted by GIPrice View Post
Why are you trying to be an ass? I have no idea why op thought overclocking cpu would bring better gpu results.
I only had experience with AMD chips prior to this, they tend to bottleneck even single cards unless the cpu and northbridge is overclocked. I didn't know that it doesn't bottleneck, which is the reason for my testing.

Here are the 3dmark11 results. Keep in mind the total and combined scores are inflated by the higher CPU Physx score at 5 ghz. The GPU scores are nearly identical again at 4.2 and 5ghz.


Edited by Scorpion667 - 5/6/11 at 11:20pm
    
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post #9 of 45
I don't see why this would be surprising.

Your card isn't "that" fast - and a SB chip at 4.2Ghz isn't slow either.

I do know for sure that even at 5.3GHz in vantage I could get higher than 40k gpu simply by increasing my cpu speed, because in limited parts there is a cpu bottleneck.


Anyone who doesn't understand why a faster cpu is required to get the most from your gpu(s) is ill-informed and probably is the same type of person who stoops to name calling. However there is always "enough" and you've clearly reached it with your single card, overclock it more, or go SLI.
Edited by BallaTheFeared - 5/6/11 at 11:33pm
    
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post #10 of 45
Quote:
Originally Posted by Scorpion667 View Post
I only had experience with AMD chips prior to this, they tend to bottleneck even single cards unless the cpu and northbridge is overclocked. I didn't know that it doesn't bottleneck, which is the reason for my testing.

Here are the 3dmark11 results. Keep in mind the total and combined scores are inflated by the higher CPU Physx score at 5 ghz. The GPU scores are nearly identical again at 4.2 and 5ghz.
Well I haven't used amd chips and I didn't know that they bottlenecked single graphics cards. Yeah my i5 750 at 2.66 ghz isn't a bottleneck for my overclocked 570
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