"Gondolom az MS se tájékoztatta az AMD-t, hogy helló, kidobtuk ám az Intel hibrid sz.rja kedvéért, azt az ütemezőt ami Win10-en Ryzennel tökéletesen hiba nélkül működött..."

1) Nem működött ott sem olyan jól
2) Az sem újdonság az OneCore-ban ARM support óta: "By supporting what are called heterogeneous scheduling policies, Windows 10 allows threads to pick and choose between a policy that satisfies their needs, and will interact with the scheduler and power manager to best support it." (Windows Internals Pt. 1, 7. kiadás)

Arra meg, hogy egyesek szerint az ütemező nem foglalkozik a power plan-nel, a -n túl:
At a high-level, the Windows PPM is made up of the following parts: Core parking engine - Makes global scalability decisions about the workload and determines the optimum set of compute cores to execute with. Performance state engine - Makes per-processor performance scaling decisions. Platform specific controls - Implements the mechanics of state transitions and optionally provides feedback about the effectiveness of OS state decisions and runtime platform constraints.

Ahogy az MS doksi mondja: For more tuning guidance, please reach out to your silicon vendor.