3600 is V neutered a little bit for ST. It'll boost to 4.4 fine, but then all core is 1.38V. If I offset to drop all core down, then ST takes a hit down to 4.3. I mean, I don't know how accurate these numbers are, but that's what HWinfo is telling me for core V. At completely stock settings it sits at 4.2/4.1.
Man, if only 7nm was better. You can run 4/4.1 with V well under 1.3 easily, but to get a few measly 2-300 more costs you a lot. And the chips don't really pull a lot more power, they just get toasty.
edit: OK, I found the sweet spot. My setups are C6H (dirt cheap refurbs ftw) with crappy bios, sniper x 32gb cl16 3200 (yeah, still haven' OCed lol), FUMA 2 cooler, OLD windows installs upgraded to 1903
So, if I leave V at auto, enable PBO and max the settings for funsies, but leave scalar at 1x to keep V down, I can get 4.3-4.35 ST/solid 4.1 all core at 1.45v/1.32-1.35v (constantly oscillates) respectively.
The 6th core seems a little weaker, so I don't think you could do 4.4 all core, but definitely 4.3 if you wanna risk longevity. I guess that's why it's not a 3600X.