We talked about the details of two Windows 11 performance issues discovered in the first week of October. These issues were causing some AMD Ryzen processors to underperform after upgrading to Windows 11. AMD has now confirmed with a blog post that both issues have been resolved.

With the Windows 11 KB5006746 update, as of October 21, 2021, the first issue was completely resolved. The second issue has been completely resolved with the newly released AMD Chipset Driver version

AMD confirms that compatible AMD processor performance is working as intended in Windows 11 following these updates. It is also recommended that these updates be installed on affected systems as quickly as possible.

Known Issues Effect
L3 cache latency issue Up to 15% performance drops in games.
UEFI CPPC2 (“preferred core”): issue where a processor cannot correctly schedule threads on its fastest core. One or more CPU threads underperforming in certain applications.

L3 fix is ​​now available as a Windows 11 software update under Microsoft Knowledgebase ID 5006746 and you can see the new update via Windows Update. The kernel programming fix was introduced with the AMD Chipset Driver version

Like it? Share with your friends!

Michael Lewis


Your email address will not be published. Required fields are marked *