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Wrong value for GPU Memory Bandwidth for RTX 3070 ti


FFreestyleRR
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On 4/16/2022 at 12:09 PM, FFreestyleRR said:

Hello,

Today I tested the latest version of AIDA64 6.70.6000 and noticed that my GPU is shown as Suprim X (but it is Suprim only) and also the memory bandwidth is wrong: 578 GB/s and it should be 608 GB/s?

GPU-Z

Thanks!

I suppose the memory bandwidth is lower at idle than under load.  Try to put some load on the GPU, e.g. open the GPGPU Benchmark Panel of AIDA64 (from main menu / Tools) and start the Memory Copy benchmark by clicking on the box next to "Memory Copy" in the left column.

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32 minutes ago, FFreestyleRR said:

Hi,

As you can see on the first picture, I already used the GPGPU Benchmark. The result was under load.

In idle, it is 25 GB/s regarding your software...

Thanks!

Try to run only the Memory Copy GPGPU benchmark to make sure the VRAM is under heavy stress too.  During the FLOPS and IOPS tests the GPU itself crunching data, but the VRAM is not really under heavy load.

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  • 2 weeks later...

Ok, I changed some settings for the test from nVidia Control Panel and now it started to show between 593 - 598 GB/s instead of 578 GB/s which is huge improvement. However, my board is not able to reach 608 GB/s because I am on PCIe3 and not 4? Also, I didn't turn on Resizable Bar yet, if that does matter. :)

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29 minutes ago, FFreestyleRR said:

Ok, I changed some settings for the test from nVidia Control Panel and now it started to show between 593 - 598 GB/s instead of 578 GB/s which is huge improvement. However, my board is not able to reach 608 GB/s because I am on PCIe3 and not 4? Also, I didn't turn on Resizable Bar yet, if that does matter. :)

I think it's because of certain scenarios and system state parameters having to fall into the right places in the same time to enable your video card to increase the memory clock to a very high level.  So the actual memory clock boost clock depends on the actual task that your GPU is working on.

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