Ryzen Mobile Power/Performance With Linux 6.3's New AMD P-State EPP Driver
For the VKMark Vulkan benchmark, the best performance-per-Watt on this Ryzen 7 PRO 6850U laptop was when running the classic ACPI CPUFreq driver with the scheduler utilization "schedutil" governor.
When it came to gaming with the open-source Unvanquished game, there was more variation between the dozen different CPU frequency scaling options available right now for AMD Rembrandt APUs.
For Unvanquished with high quality visuals, the acpi-cpufreq powersave and amd_pstate_epp powersave power modes were yielding the best performance-per-Watt.
With the ultra quality settings for this first person shooter, acpi-cpufreq powersave and amd_pstate_epp powersave power were yielding the best power efficiency still on this AMD Zen 3+ laptop.
For the Xonotic first person shooter game the power efficiency results were closer but with a tight first place finish for acpi-cpufreq powersave.