GPU-Z 2.13 - Intel HD 620 wrong gpu clock detected

ricoh · Oct 15, 2018

HP Elitebook 830 G5 - Bios 1.04

JalleR · Oct 15, 2018

Works fine on my Lenovo T470

Btw, Just installed the newest Intel driver 10 min ago, maybe that has something to do with it ? ( you did too i see

)

W1zzard · Oct 15, 2018

I have seen this misreading on very few HD 620 devices and am not 100% sure what causes them.

Do you have a 2nd GPU chip in that laptop?

ricoh · Oct 15, 2018

Nope, only the Intel iGPU, no secondary GPU. Noticed this behaviour for a few weeks now, so the misreading doesn't seem to be related to OS build, driver release or GPU-Z build.

Solaris17 · Oct 15, 2018

I got this as well. On the recent intel drivers. I also run the recent nvidia drivers 416.34. My internal GPU is an MX150 (N17S-LG-A1 variant at 10w NOT the G1-A1)

The incorrect readings we get are the same, maybe that has some kind of significance?

W1zzard · Oct 15, 2018

Solaris17 said:
maybe that has some kind of significance?

yeah the register reads as 0xFF

ricoh · Oct 15, 2018

...and the sensors page does show exactly 1/3 of that register value, no matter if load or idle.

W1zzard · Oct 22, 2018

@ricoh can you test if the attached build shows the correct gpu clock? realtime sensors should still show the wrong values

ricoh · Oct 23, 2018

@W1zzard

Thanks for the test build, the clocks on the main page are now correct (realtime sensors still @ 4250 mhz)

W1zzard · Oct 23, 2018

Thanks, will implement the fix more widely and post another link

@ricoh please test the attached build, everything should be reported correctly now

ricoh · Oct 26, 2018

@W1zzard

Sorry for the late answer. Both the 2nd test build and the 2.14 release build do show the correct clock rates (300 mhz idle / 1000 mhz load) in the realtime sensors tab.

Thanks for the fixes.

W1zzard · Oct 26, 2018

thank you!

ziddey · Nov 2, 2018

This is hardly of significance and definitely an edge case, but since core clock is now fixed..

Mem clock doesn't take bclk into account. For example, with a 125bclk, mine shows 1200mhz while it's actually 1500 (1200x1.25).

Just figured I'd throw it out there

Gorstak · Nov 2, 2018

I didn't know hd 620 existed. I've heard of 610 and 630, but never of 620.

W1zzard · Nov 2, 2018

ziddey said:
This is hardly of significance and definitely an edge case, but since core clock is now fixed..

Mem clock doesn't take bclk into account. For example, with a 125bclk, mine shows 1200mhz while it's actually 1500 (1200x1.25).

Just figured I'd throw it out there

That's correct. Bclk changes are not taken into account

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GPU-Z 2.13 - Intel HD 620 wrong gpu clock detected

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