Launching Windows 11: AMD goes up performance issues on its CPUs

Pretend to be surprised, but it looks like the launch plan of Windows 11 did not happen without a few snacks. AMD has already confirmed what several warned users had noticed: some brand processors have seen their performance in play impacted by the transition to the new bone, with decreases of frame rated estimated from 3 to 15%.

We pointed out a few days ago on our file on Windows 11: One of the reasons for us to advise you to wait before installing the new Microsoft operating system held for a lot to the vagaries. A launch of this caliber could generate. User memory, then journalist, we never saw such an event unfold without a certain failure at startup. Fort logically, Windows 11 will not except. At the discharge of Microsoft, in an universe as open and varied as the PC, it must be difficult to anticipate all compatibility issues, whether they are software or hardware.

Anyway, among the elements most often reassembled in the press following an update or installation, there is a Microsoft Store application that disappears, the new screenshot system sometimes defective, or problems memory leak within the file explorer. However, a BUG more particularly affects the community of players: the one that leads to performance losses by 3 to 15% on machines equipped with AMD processors.

More specifically, AMD has identified two distinct problems: the first consists of a significant increase (the mark speaks of a factor 3) of the L3 cache latency. And latency in managing cache, it s a sensitive point when talking about video games. The first Ryzen chips also showed performance in withdrawal from their competitors at Intel at stake for similar reasons. It was, however, at the time of a weakness of architecture, while here, we speak well of a bone that does not properly exploit the material at its disposal. Second concern: misconception of favorite cores of the processor, and by extension, an optimal distribution of tasks on them. It should be known that since the generation of Ryzen 3000, AMD uses a CPPC2 called API interface to allow the processor to communicate information to the operating system. In particular, the CPPC2 interface must indicate, at a moment t , which of its cores are likely to achieve the best performance, so that the OS prioritizes their use. Except with Windows 11, it works badly.

Fortunately, AMD and Microsoft are already working on resolving these failures, and hope to provide patches by next October, through Windows Update. In parallel, we note that other performance issues have emerged, which affect this time a wider share of users: thus, the company of Benchmarking ul Procyon, which includes the famous PCMark and 3dmark suites, has detected that a Windows 11 security systems named VBS (for Virtualization-Based Security ) also affected general performance. Instinctively, the thing seems pretty logical: the security of a computer process often gives a cost in terms of treatment, and a parallel could be drawn between this case, and the safe screw towers that had been operated by Intel on its processors after that several important flaws had been highlighted. Screw turns that also led to significant performance declines.

To conclude, remember once again that the transition to Windows 11 is absolutely not a necessity currently, and these latter elements invite even to the greatest caution. Windows 10 will remain in any majority in the PC universe a few more years, and in this sense, it will receive a full support from Microsoft.

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