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Bottleneck Question

post #1 of 6
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I am basically just posting this to confirm that my CPU is in fact bottlenecking my GPU ...


This screen is from my 2nd monitor while I was playing EverQuestII.

I've heard that on HT Pentium 4s that if you go over 50% usage that you have a bottleneck, is that accurate?
post #2 of 6
I've never heard that.
I know this though, my 1950pro was being held back by my 3.0E @ 4.0.
OC your P4 and check your results.
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Mighty-iTX
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post #3 of 6
Quote:
Originally Posted by GibbyGano View Post
I am basically just posting this to confirm that my CPU is in fact bottlenecking my GPU ...

This screen is from my 2nd monitor while I was playing EverQuestII.

I've heard that on HT Pentium 4s that if you go over 50% usage that you have a bottleneck, is that accurate?
Not sure how hyperthreading works, but theoretically you are using as much of a single thread as you can, so yes your CPU is being maxed out for that game, and a better one would show benifit.
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post #4 of 6
Quote:
Originally Posted by GibbyGano View Post
I am basically just posting this to confirm that my CPU is in fact bottlenecking my GPU ...

This screen is from my 2nd monitor while I was playing EverQuestII.

I've heard that on HT Pentium 4s that if you go over 50% usage that you have a bottleneck, is that accurate?

That information is wrong. There could be a Quad core chip doing lots of video editing and would use more than 50%. Does that mean that it is bottlenecking the GPU? Not by any means. They are independent tasks.

The single core netburst chip that you have may hinder the performance of your card, but the only way to tell is to lower the chip to stock and run a benchmark like 3D Mark06 and then overclock and run it again.

Compare the results. If the second test is higher on the GPU side you have a bottleneck of some proportion.
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post #5 of 6
Quote:
Originally Posted by TheLegend View Post
That information is wrong. There could be a Quad core chip doing lots of video editing and would use more than 50%. Does that mean that it is bottlenecking the GPU? Not by any means. They are independent tasks.

The single core netburst chip that you have may hinder the performance of your card, but the only way to tell is to lower the chip to stock and run a benchmark like 3D Mark06 and then overclock and run it again.

Compare the results. If the second test is higher on the GPU side you have a bottleneck of some proportion.
Since the application he is running is single threaded, it can only use up to 50% of his CPU power essentially. If he is getting that all used, then a better CPU would run that game better.

For the strict purposes of bottlenecking though, thelegend's method is the best thing to do. While the game may need more CPU power, your system may be limited more in another way that would make the extra CPU power not noticable. For example, you may not have enough RAM, and no matter how good of a CPU you get that won't eliminate the stutter from that. (Don't worry I think 2gb is fine though )

I would go run some tests and see how much benifit you get from overclocking. If it is noticeable, then a CPU upgrade should help out alot.
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post #6 of 6
the link in my sig has good info about bottle necking, check it outt
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