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Yuval

Is there any way to check if a CPU bottlenecks the GPU?

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Yuval    2

^^^^

i sometimes get good FPS in games and sometimes shitty frames. since most of my PC is upgraded beside my CPU i'm assuming it is the issue.

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Reptile449    0

Search google in case someone has asked this before. If you don't find anything download 3dmark and run the standard free test. It will give you a Graphics and physics score which can help you know if one is much more powerful than the other.

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Yuval    2

Use MSI afterburner you can check everything.

But how do i know when there is a bottleneck?

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broz70    0

I5 2400 3.1 ghz

7950 overclocked (1250 core 1500 memory)

With that spec your computer should not be bottlenecking at all.

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ActionMan    2

It depends on the application whether a particular component will be a bottleneck or not.

You can't take one benchmark and then use it to predict the behavior of every other game.

Even within one component, there's individual bottlenecks.

e.g. the GPU could be bottlenecked by pixel shaders, or input assembly, or raster-ops (pixel output). The CPU could be bottlenecked by raw FLOPS, or branch prediction, or cache misses (waiting on RAM).

There's no easy, simple way to examine a particular game and see what the bottleneck on your PC is. It takes extensive detective work to determine :/

However, one very simple test you can do is:

1) Change the resolution of the game.

2) See if the performance changed.

If increasing the resolution reduced performance (or decreasing res increased performance), then you're very likely bottle-necked by pixel operations on the GPU.

If you change the resolution and there is no performance difference, then you're likely bottle-necked by the CPU (or RAM, or another part of the GPU, such as vertex processing).

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