Question Problem with GPU memory clock with double monitor setup ( Ik it's common problem but for long time all work fine for me)

Mar 6, 2025
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Hey everyone, I’ve run into an odd issue with my setup. Right now, I’m using a 180 Hz monitor and a 75 Hz monitor. Whenever both are active, the GPU memory clock is unusually high, even when the PC is idle. However, when I set the monitors to 144 Hz and 60 Hz, the GPU memory clock returns to normal levels.

I’ve also tested:

180 Hz and 60 Hz, but it didn’t work properly.

144 Hz and 75 Hz, also didn’t work properly.


The strange part is that the problem appeared after I enabled the "Power tuning" option in the driver (tuning GPU power usage); Suddenly I saw that the fan curve changed and that's when the GPU memory clock started working at full speed. of course I turned off power tuning right after that, Before all work perfect on 180hz+75hz. I haven’t changed any other settings recently. I’m running an RX 6700 XT.

I’ve also tried resetting the GPU drivers (DDU), and tested both older and newer versions, but nothing changed.

The 75 Hz monitor is connected via HDMI, and the 180 Hz one is connected via DisplayPort. I tried connecting both via HDMI, but that didn’t change anything either.

Has anyone experienced something similar or have any idea what could be going on?

Thanks in advance!

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