Fixes for AMD Ryzen performance, other Windows 11 issues rolling out to testers now

Enlarge / A PC running Windows 11. (credit: Microsoft)

Now that Windows 11 is out, the arduous process of fixing the new operating system's bugs can begin. The OS got its first Patch Tuesday update earlier this week, and now another update is rolling out to Windows Insiders in the Beta and Release Preview channels. It fixes a long list of early problems with Windows 11.

The headliner here is a fix for a problem affecting L3 cache latency on AMD Ryzen processors. According to AMD, the bug can reduce performance by 3-5 percent. The Windows 11 update released earlier this week may have actually made the problem worse, but at least a fix is imminent.

The L3 latency bug is one of a pair of problems that AMD identified with Windows 11 earlier this month. The other Windows 11 problem AMD identified, which can prevent high-core-count, high-wattage Ryzen chips from correctly assigning work to the processor's fastest individual cores, will be fixed via an AMD driver update.

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