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Will my CPU bottleneck this GPU?

Tags:
  • GPUs
  • Bottleneck
  • CPUs
  • Graphics
Last response: in Graphics & Displays
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August 8, 2014 7:25:54 AM

I'm looking to buy a new GPU the Sapphire r9 270 and im afraid that my CPU will bottleneck it.
The CPU i have right now is the Pentium (R) DualCore e5700 3.00GHz will it bottle the r9?
Thanks

More about : cpu bottleneck gpu

a c 246 à CPUs
August 8, 2014 7:31:42 AM

Depends on the game, but yes a little.

Mantle will help you at least.
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a c 379 à CPUs
August 8, 2014 7:33:55 AM

I don't think so.

To help clarify your CPU/GPU options, run these two tests:

a) Run your games, but lower your resolution and eye candy.
If your FPS increases, it indicates that your cpu is strong enough to drive a better graphics configuration.
If your FPS stays the same, you are likely more cpu limited.

b) Limit your cpu, either by reducing the OC, or, in windows power management, limit the maximum cpu% to something like 70%.
Go to control panel/power options/change plan settings/change advanced power settings/processor power management/maximum processor state/
This will simulate what a lack of cpu power will do.
Conversely what a 30% improvement in core speed might do.

You could also experiment with removing one core in the bios. This will tell you how sensitive your games are to the benefits of many cores.

If your FPS drops significantly, it is an indicator that your cpu is the limiting factor, and a cpu upgrade is in order.

It is possible that both tests are positive, indicating that you have a well balanced system, and both cpu and gpu need to be upgraded to get better gaming FPS.
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August 8, 2014 7:47:03 AM

There will be a bottleneck in any setup... would I worry about it, no. You will be getting acceptable performance either way.
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