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RTX 5090 - Incorrect GPU-Z Clocks, when Overclocking with the Curve Tuner

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Hey, hope this is the correct place to report a minor bug in GPU-Z...

This particular bug has persisted for at least the past two releases of GPU-Z, as well as nVidia Driver Versions 572.16 and the current 572.47.

Issue:
  • Upon using Afterburner to apply an overclock, GPU-Z reads incorrect GPU Clock and Boost clocks on a RTX 5090.
To Reproduce:
  • Install Afterburner.
  • Open GPU-Z
    Apply Overclock (I am using the Curve Tuner)
  • Clocks in GPU-Z update to show incorrect readings
  • GPU-Z Sensors tab still read the correct clocks
System is shown in my profile; running Windows 11 Pro 23H2, with all latest updates and drivers installed.

The instillation is pretty fresh, with minimal software installed.
Running DDU (in safe mode) and reinstalling the drivers does not resolve the issue.
I have noticed that, after reinstalling the latest drivers, GPU-Z will report clocks matching stock, but it switches back to showing low clocks, as soon as you apply the OC again.

1 - GPU-Z - Restart without Afterburener applying OC.png


2 - GPU-Z - Apply OC with GPU-Z Open.png


3 - GPU-Z - Afterburener OC applied after startup - Stress Test 1.png


4 - GPU-Z - Afterburener OC applied after startup - Stress Test 2.png



EDIT:
Post Title updated, to indicate that the issue occurs when overclocking using the Curve Tuner.
 
Last edited:

W1zzard

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I guess that could be due to how you configured the curve. Could you show a screenshot of that and what clock you'd expect to be displayed?
 
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Processor Ryzen 7 5800X - Curve Optimizer @ -5/-20/-0/-10/-15/-15/-20/-20 - Tested to be Rock Solid Stable
Motherboard ASUS Prime X470-Pro - VRMs @ MAX Switching Frequency
Cooling 2x VPP755 V3 + Eisdecke D5 dual plexi - Corsair XR5 420mm - 2x NexXxoS ST30 V2 560mm - CPU=>RAM=>GPU
Memory 32GB Dual Rank DDR4 @ 3733 MHz 1:1 - Cmd2T 1T - tCL 14, tRCD 8/15, tRP 15, tRAS 31, tRFC 261 (140ns)
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Storage WD Black SN850 2TB
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Power Supply be quiet! Straight Power 11 1000W Platinum
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Keyboard Royal Kludge RK61 - Mix of Kailh V2 Super Speed Bronzes, TTC Bluish Whites and Crunchberries
Software Windows 11 Pro
Now that you say it, it does make sense, that changing the V/F curve would cause some difficulties :oops:

You can see my curve below (flattened at 975 mV, from a base +200 MHz offset).
I suppose, showing the current Base and Boost clocks, taken at the same voltage points used to determine the Default clocks, would be the expected behavior.

Upon applying a non-curve OC, the correct clocks are shown, as expected.

5 - GPU-Z - RTX 5090 V_F Curve in Afterburner.png


6 - GPU-Z - Correct Clocks Shown with non-curve OC.png
 

W1zzard

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taken at the same voltage points used to determine the Default clocks
good idea. is that how it really works? How is that voltage point determined?

Even if used, I'm sure you can imagine ways to adjust the shape of the curve to "game" the reported number?
 
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good idea. is that how it really works? How is that voltage point determined?

Even if used, I'm sure you can imagine ways to adjust the shape of the curve to "game" the reported number?

Sorry i didn"t find how to contact, so i write here, the DLSS DLL 310.2 s infact 310.2.0 since Indiana Jones update 3 has 310.2.1 (newer CL).
EDIT:
it's DLSS G file tho !

I think DLL G & D should have a longer version too !!

 

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