AMD P-State vs. ACPI CPUFreq Testing With Ryzen Laptops On Linux 5.17

One of the most prominent features of Linux 5.17 for end-users was the introduction of the AMD P-State driver that is designed to deliver better energy efficiency than the generic ACPI CPUFreq frequency scaling driver relied on by AMD Ryzen processors up to this point. For those wondering how the performance and efficiency currently compare for Ryzen laptops, here are some benchmarks recently carried out on Linux 5.17 for both drivers and testing both the Schedutil and Performance governors.