Soldato
could be a power supply issue, if a driver crashes clocks and utilization will drop back very low, the fact its going down to 1ghz means the card is working and requesting power its not getting, hense the drop in clocks, with regard to your psu is it very old and how have you got it wired up to your card. Are you using seprate power cables for each plug or using a spiltter cable?
whats the make and model of your gpu too?
PSU is a Corsair ShiftX 1200w, Fairly new. Card is the Sapphire 7900XTX Nitro+ variant. Connected via an extension but each of the 3 x 8 pins has its own cable. Also tried with 3 x 8 pins direct from the PSU and no extension but it made zero difference.
Didn't the 5700XT suffer from irregular clocks at some point? Was driver issue then and prob a driver issue with this.
Quite likely, I've just installed the latest beta driver, Launched Horizon Forbidden West and not seeing the stutter/low usage issue again.
Hopefully whatever they did in the release candidate makes it into the next mainstream driver.
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