AppleGraphicsPowerManagement? Sonoma - GPU fans permanently on @100%

I have an RX 580 8GB working great under Mojave 10.14.6 for all 2D/3D games.

I am also dual-booting into Sonoma 14.3

Card runs fine under Sonoma with any 2D workload/game, but even the simplest 3D workload spins the GPU fans up to 100% and they stay there permanently (requiring a reboot).

Has anyone else had this happen on Sonoma? Am I the only one?

EDIT: added VRAM amount

submitted by /u/themacmeister1967
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