AMD Ryzen 9 7950X P-State/CPUFreq Frequency Scaling Performance On Linux

Written by Michael Larabel in Software on 10 October 2022. Page 3 of 5. 24 Comments
Ryzen 9 7950X CPUFreq Drivers Governors

The Python start-up time was also slower when using amd-pstate schedutil compared to the other options.

Ryzen 9 7950X CPUFreq Drivers Governors
Ryzen 9 7950X CPUFreq Drivers Governors

The amd-pstate schedutil default also showed the worst gaming results with the open-source Unvanquished shooter title.

Ryzen 9 7950X CPUFreq Drivers Governors
Ryzen 9 7950X CPUFreq Drivers Governors
Ryzen 9 7950X CPUFreq Drivers Governors

When it comes to performance-per-Watt, using the performance governor yielded the best bang in the gaming tests along with the acpi-cpufreq ondemand results.

Ryzen 9 7950X CPUFreq Drivers Governors

When looking at the peak frequency metrics during the Unvanquished run, amd-pstate schedutil was at times clocking much lower than the other tested governor/driver combinations.

Ryzen 9 7950X CPUFreq Drivers Governors

At least the Ryzen 9 7950X was operating the coolest with amd-pstate schedutil while running Unvanquished...

Ryzen 9 7950X CPUFreq Drivers Governors
Ryzen 9 7950X CPUFreq Drivers Governors

With the open-source game Tesseract, amd-pstate schedutil was the outlier compared to the other tested CPU frequency scaling configurations.

Ryzen 9 7950X CPUFreq Drivers Governors
Ryzen 9 7950X CPUFreq Drivers Governors

But still amd-pstate schedutil didn't yield any great power / efficiency results.


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