RX 480 Strange GPU usage jumping to 0% many times

[IntelGuy1]

Hi,

I'm having a strange issue with my RX 480. Most of the games shows a GPU usage of 0% during gaming. When GPU-Z or other software registers 0% I don't lose any FPS so I really don't understand why this happens.

Theres a bit of a GPU-Z log playing GTA:SA at 100fps:

GPU Load [%]:
0
0
0
0
30
0
50
0
47
0
37
0
0
0
0
10
0
0
11
0
0
33
94
0
0
0
25
90

When the game was using 0% of the GPU I didn't had any performance problems!

This doesn't happen with very demanding games.

I know that a game like GTA:SA is old and easy to run for a RX 480, but again, 0% GPU usage doesn't seems normal.

Specs:

Sapphire Nitro+ RX480 8GB OC (11260-01)
i5-3450 3.1 GHz (3.5Ghz Turbo Boost)
ASUS P8B75-M LX
2x KINGSTON HYPERX 4GB DDR3 1600MHZ
XFX PRO SERIES 650W Core Edition

Temperatures are ok.

Thanks.

 

[IntelGuy1]

No one?

 

[alwolfer]

I have the same card and the same issue.
Theres nothing wrong with the card it just seems to be an issue with how gpu z reads the usage. The fix I found, at least for me because I use msi afterburner, was to go to setting > general and check the box that says "Enable unified GPU usage monitoring"
I'm not sure about how to fix it on gpu z.

 

[SteelOwl]

To not open a new topic I will post here. I have the same problem. In some game my gpu activity is like ekg, but asa far as I seen fps stay the same. In this link below is a picture of my core, memory and usage spikes in aida64 stress test - gpu only. Is this really normal for 4xx.series?

http://imgur.com/a/tXvaz

 

[Eeielen]

I have the same card and the same issue.
Theres nothing wrong with the card it just seems to be an issue with how gpu z reads the usage. The fix I found, at least for me because I use msi afterburner, was to go to setting > general and check the box that says "Enable unified GPU usage monitoring"
I'm not sure about how to fix it on gpu z.

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