Early Windows 11 users noticed performance declines on machines with AMD processors. With the first update of the system, the performance deteriorated further. Microsoft and AMD have announced fixes.
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The beta versions from Windows 11 will not have been enough to eliminate all bugs ahead of its October 5 release. the operating system has already had its first patch, especially to resolve network connection problems. However, users with AMD processor-based devices have seen a distinct performance degradation.
The problem was discovered with the release of Windows 11, with some users seeing up to 15% performance loss with an AMD processor compared to Windows 10. The site TechPowerUp was able to measure this phenomenon, which results in an increase in the latency of the L3 cache, which went from 10 nanoseconds with Windows 10 at 17 nanoseconds after migration to Windows 11.
Fixes next week
After installing the Windows 11 update released on Tuesday, performance deteriorated further, with latency for the L3 cache rising to 31.9 nanoseconds. This is in addition to a second bug, which concerns a function called CCPC. To optimize performance, the system is supposed to prioritize the fastest core of the processor but it does not work correctly in Windows 11. This second problem mostly affects processors with 8 or more cores.
Microsoft and AMD have identified the problem, and both firms have announced fixes for them. computers affected later in the month. There are rumors that the update for the L3 cache issue will be released on October 19, and a second update for the CCPC issue will be released on October 21.
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