So what a shocker
MS has a "new" OS launching at the same time as Alder Lake with scheduler enhancements and everything in order make sure it works well. Meanwhile when AMD releases FX or Zen CPUs, MS is like, "yeah we'll get around to updating the scheduler a little bit in a few months... idk... we're pretty busy making sure Candy Crush works well on UWP."
AMD: Windows 11 Slows Our CPUs Up To 15%, Patch Coming
AMD has
announced that all of its WIndows 11-compatible processors can suffer from reduced performance in some applications when used with the new operating system, with extreme outliers in eSports gaming titles dropping by up to 10–15%. For applications, AMD says that the performance impact weighs in at 3–5%. A software update
and a Windows Update are in the works to address the issues, with both expected to arrive in October 2021 (this month).
The errors impact every Ryzen CPU supported in Windows 11. That means all Zen+, Zen 2 and Zen 3 CPUs that comprise the
Ryzen 2000,
Ryzen 3000, Ryzen 4000, and
Ryzen 5000 processors are impacted. In addition, select AMD EPYC processors for data centers, along with some newer Athlon chips, are also impacted. You can see the
full list here, but suffice it to say that every AMD chip on our
Best CPUs for gaming list is impacted.