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The first Windows 11 update exacerbated AMD's loss of performance

The first Windows 11 update exacerbated AMD’s loss of performance

With the latest version of Windows 11, Microsoft has made several changes to everything from the interface to more drastic changes under the hood to improve performance. Ironically, this resulted in a real loss of performance with AMD’s Ryzen processors, something that the processor maker itself pioneered. Things went smoothly when an update was promised in October.

Before (left) and after (right) the latest Windows 11 update

► AMD: “Ryzen is up to 15 percent slower in Windows 11”

Now that the first update for Windows 11 has been released, no improvements have been noticed with AMD Ryzen. On the contrary, performance deteriorates significantly in some cases, Techpowerup reports. The reason for AMD’s loss of performance is the increased L3 cache latency, which rose from 10 to 17 nanoseconds from Windows 10 to Windows 11. With the new update, this nearly doubles to 31.9 nanoseconds.

checked before Techpowerup It’s built with AMD’s Ryzen 2700X “Pinnacle Ridge” that has eight cores and 16MB L3 cache, but the loss should apply to all Ryzen processors regardless of generation. However, the cause of the error is known, and on Reddit, AMD stated that two updates are imminent. One will fix L3 cache latency issues, and another will enable the operating system via the CPPC2 feature to select the best performing cores for single-threaded loads again.

The procedure that resolves L3 cache latency issues will be released through Windows Update on October 19, and the CPPC2 error will be resolved two days later on October 21.

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