Up to 15 percent: Performance loss with AMD under Windows 11 confirmed

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It was already noticed in the ComputerBase performance test of Windows 11, and now AMD has confirmed it: Ryzen does not yet run smoothly under Windows 11. The fact that the performance loss can be up to 15 percent, as confirmed by AMD, is surprising and raises questions.

AMD Ryzen can lose performance under Windows 11, which was quickly determined by the editors with a Ryzen Threadripper and a Ryzen 5000. AMD confirms that the problems can mainly occur with CPUs with more than eight cores and above 65 watts. Windows 11 doesn’t really know which core is the fastest there and sometimes takes a slower one. In this case, however, the loss of performance is small, because the fastest core often only clocks around 25 or 50 MHz faster than another in the processor – at 4.5 or even up to 5 GHz in single-core scenarios, the effects are manageable.

eSports games are the worst-case scenario

However, the problem with latency and the storage system is much greater. In the worst case, both can increase the problem by a factor of 3. According to its own information, AMD has found significant effects here, in the smallest case there is a 3 percent performance loss in applications, in other situations up to 5 percent. The worst-case scenario, however, are eSports games in which there are outliers with a performance loss of up to 15 percent.

AMD's problems on Windows 11 AMD’s problems under Windows 11 (Image: AMD)

AMD and Microsoft under fire

Both problems should, if possible, be resolved this month via a Windows or software update. AMD’s quick response today is commendable, but it also raises questions. First of all, the timing: The company wants to bring a fix in October, but why weren’t the restrictions noticed before Windows 11 started, be it at AMD or Microsoft, which was last with the expansion of the system requirements CPUs tested? The timing is therefore anything but happy and casts a rather bad image of the two parties and their cooperation.

ComputerBase’s first conclusion in the Windows 11 benchmarks was therefore already chosen appropriately: If you have Windows 10, you don’t need to switch yet. Windows 11 is still maturing. Ultimately, it comes as no surprise that AMD recommends “Continue to use a supported version of Windows 10.”

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