AMD Warns of 'Reduced Performance' for Ryzen Chips on Windows 11

If you’re running Windows 11 on an AMD Ryzen chip, brace yourself for slight performance dips. AMD says it’s uncovered a mysterious issue in its processors that can trigger “reduced performance in certain applications” on Windows 11, which launched on Tuesday.

The chip maker’s support document indicates that all AMD processors officially compatible with Windows 11 are affected. For consumers, these chips go back to 2018’s Ryzen 2000 series.

One of the discovered problems can cause the L3 cache in AMD chips to potentially increase the latency by three times. Slowing the L3 memory bank can thus drag down the access times for certain applications. “Expected performance impact of 3-5% in affected applications,” AMD wrote in the support document. “10-15% outliers possible in games commonly used for eSports.” 

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