Earlier this week, Microsoft released a patch that fixed the performance issues of Windows 11 that seemingly plagued desktop systems powered by AMD Ryzen chips. One particular issue was how the OS caused the L3 Cache of Ryzen CPUs to run slower than usual, from a typical 10ns to 31.9ns. The second issue that Ryzen users would encounter was that the CPU’s UEFI-CPPC2 (preferred core mechanisms) were being rendered inoperable. Ironically, the problems arose after Microsoft released an initial Cumulative Update to fix that issue, but that ended up backfiring on them. The good news is, the company has since issued another patch, first through its Insider Build program, which allows beta testers who use a Ryzen system to check it out first.
In any case, AMD says that the Chipset Driver package 3.10.08.506 should address the UEFI-CPPC2 issue, while the Windows 11 patch will address the L3 Cache Latency issue. You can find more details on the support page. (Source: AMD)
