P-State/CPUFreq CPU Frequency Scaling Tests For Radeon/NVIDIA Gaming With Linux 4.16

First up was F1 2017 being tested at 1080p with high quality graphics. The results largely come in line with expectations. The best performance is delivered when using the "performance" governor of either CPUFreq or P-State. The P-State powersave mode that is the default for Intel CPUs on Ubuntu was very close -- or with the GTX 1080 identical -- to the performance mode. Meanwhile, using the CPUFreq powersave mode has long been known to be the worst choice for gaming while in the middle were CPUFreq ondemand and CPUFreq schedutil, the newest governor that makes use of scheduler utilization data.

The F1 2017 relative performance was roughly similar at 1440p.

With the DiRT Rally racing game the results were close to the same with the notable exception of CPUFreq's powersave governor.