I think my AMD R9 290X frequency is incorrectly displayed


Hello, I love this program. However I seem to have a problem with my frequency on my AMD R9 290X. As you can see in the attached screenshot, GPUTweak shows a constant 1255MHz, while HWiNFO fluctuates madly between 1116 and 1255. At first I thought this was a thermal throttling issue, but as you can also see my card never pushes 50C as it is water cooled, and these cards aren't supposed to throttle until 95C.


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I'm not sure how GPUTweak determines the clock and what refresh period it uses.
But this might also be a power limit issue (not just temperature). Happens quite common to me when launching certain double-precision computing tasks. Have you tried to raise the power limit ?
Also, are you sure that the GPU was under a constant load during that period? What type of workload have you run?
If that won't help, please attach the HWiNFO Debug File capturing such situation for analysis.