Windows 11’s first update makes AMD CPU performance even worse

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Microsoft is aiming to fix AMD performance issues this month

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AMD warned last week that its chips were facing performance issues for Windows 11 and now Microsoft first update Your new OS has reportedly made the problems worse. takepowerup reports After Windows 11 update went live yesterday, it is seeing very high latency, which means poor performance.

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AMD and Microsoft found two problems with Windows 11 on Ryzen processors. Windows 11 L3 cache can triple latency, slowing performance by up to 15 percent in some games. The second issue affects AMD’s Preferred Core technology, which moves threads to the fastest core on a processor. AMD says this second bug could affect performance on CPU-dependent tasks.

takepowerup Measured L3 cache latency on my Ryzen 7 2700X at around 10ns, and Windows 11 increased it to 17ns. “This was made worse with the October 12th ‘Patch Tuesday’ update, increasing latency to 31.9ns,” says takepowerup. It’s a huge leap forward, and the type of issue AMD warned about.

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However, patches for both Ryzen issues are coming before the end of the month. The L3 cache issue will be addressed by Microsoft next week, with suggestion of rumors October 19th for a patch. The preferred core patch will be addressed by the AMD driver, which is expected to be delivered later this month and is expected to be available on Windows Update as soon as it is released.

It’s still surprising to see Windows 11 ship with these issues, especially since Microsoft has limited the amount of processors supported for this new OS. Bugs always happen with new OS releases, but such an obvious performance impact on major CPUs should have been picked up during the months of public beta testing. Either way, it’s encouraging to see that it will be fixed very soon so that people suffering from poor performance don’t have to wait too long for a patch.

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