AMD has acknowledged that its CPUs operating on Windows 11 are experiencing performance issues. It is possible that increased L3 cache delay and sub-optimal thread scheduling will result in a 10-15 percent performance reduction on some CPU models.
The organization has already begun working on a solution, which should be available very shortly. Microsoft is scheduled to deliver an update on October 19, which will be followed by an AMD driver update on October 21, so there’s a strong probability that the issues will be remedied by the end of the day on Thursday.
Microsoft has stated that it will not be releasing Windows 11 to AMD Ryzen-powered computers until that time and that users of such PCs should desist from manually updating their operating system.