With pbo enabled and everything else stock config (expo2), i was able to achieve a -16 curve optimizer stable for my 7950x. I was prepping begin doing a per core negative co when i came across this video https://www.youtube.com/watch?v=4JXvewurhks&t=65s which talks above undervolting for the 7950X3D.
I know LLC, levels go from more vdroop to less or no vdroop. I guess with a negative curve optimizer, the less vdroop would help bring the undervolt more in line, but im not sure how it will affect the 7950x considering it doesnt have the same voltage limit as a x3d chip.
I tested out a negative -22 co at level 5 LLC (asus x670e) and was stable during cinebench and like 30min in diablo 4. Usually anything more then -15 on stock power settings would reboot my pc 15min into gaming/bench marks. Im currently running corecycler but curious if anyone had success pushing for a greater negative curve optimizer by increating cpu load line calibratiom.