What are you settings in PBO?Lets be clear about offsetting the voltage, all you are doing is raising the entire floor for every single core, pretty much defeating the purpose of doing negative offsets anyway. You're better off just finding the core(s) that arent playing nice and reducing the amount of negative voltage you are putting in the curve. Its a balancing act.
Also keep in mind that doing offset voltage will eat into the pbo budget (specifically edc) and you will get lower overall clocks. Doing it manually per core and finding the sweetspot for each one will result in better overall performance.
Its interesting that amd released the slide deck on this today and it seems what I stated before about there being a limit to the lowest possible offset rings true. For me, that was around negative 70 (the value entered in). Anything below that didnt do anything at all.
What I said last page also holds true. Tune your best 2 cores first to maximize their single core boost freq (just do runs of r20 single core and observe your core frequency in ryzen master to see what you actual effective clock speed is and hwinfo does not update fast/accurate enough to make it reliable in what the clocks are actually doing) and comnpare them with the score you get in r20). This will probably be around -20 - -5 for each of those two cores as pbo needs the voltage for the higher end (but does eat into your overall clock as there are per core currant/power limits).
Next, drop all of your other cores that are NOT the two best cores windows uses (can view this in ryzen master as well). I'm sure many people could drop all of these other cores to -20 - -70 without much issue. The reason being is that these cores are never running a heavy single core load. Those loads will always be shoved to your two best cores because...windows.
Just keep running r20 all core loads and turning down the remaining cores. For me, i hit the negative wall on all 14 remaining cores on my 5950x. I literally have 14/16 cores set to negative 160 because it lets me lol, not that it does anything different that what negative 70 does,
My two best are set to negative 10 and negative 20, which nets me a max effective freq of 5120 (5150 set) for single core and ~ 4.725ghz all core.
View attachment 2466457