Shortly after Home windows 11 launch, AMD and Microsoft collectively found that Home windows 11 is poorly optimized for AMD Ryzen processors, which see considerably elevated L3 cache latency, and the UEFI-CPPC2 (most popular cores mechanism) rendered not working. In our personal testing, a Ryzen 7 2700X “Pinnacle Ridge” processor, which usually posts an L3 cache latency of 10 ns, was examined to point out a latency of 17 ns. This was made a lot worse with the October 12 “patch Tuesday” replace, driving up the latency to 31.9 ns.
That’s one hell of a regression. It appears fixes are incoming quickly, although.