Since October 5, the official version of Microsoft's new generation operating system Windows 11 has started to push updates. Some users should have tried to upgrade new systems for their computers. However, AMD recently announced on its official website that it has confirmed with Microsoft that the current version of Windows 11 has two major problems that may affect AMD CPU performance.

Specifically, the first problem is that Windows 11 may cause CPU L3 cache latency to increase by three times, affecting some programs that are sensitive to cache latency. The official said that the expected performance of the affected applications will decrease by 3-5%, and the performance of some games may decrease by 10% - 15%.

The second problem is that the system may not be able to schedule threads on the fastest core first, which may lead to performance degradation in some single threaded and light threaded applications. The performance impact may be more obvious on processors with more than 65W TDP and more than 8 cores.

The above problems affect all Ryzen, EPYC and Athlon series processors that support Windows 11. AMD officials said that these two problems are expected to be repaired by software updates within this month. During this period, AMD processor users affected by the problems are advised to continue using Win10.

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