Microsoft is releasing a new Windows 11 update today that fixes some of the AMD CPU performance issues. AMD and Microsoft found two issues with Windows 11 on Ryzen processors at launch, with one causing L3 cache latency to triple and slowing performance by up to 15 percent in certain games. Microsoft is now fixing this particular issue with Windows 11 Build 22000.282, available to all Windows 11 users today as an optional update in Windows Update.
