Thanks, I'm running 1440p now myself. ya I agree the MOBO need to be the same. It's funny how all the ASUS boards are slightly different settings across the board.
So what I did was this 2 nights ago. Reset all settings on my MOBO. so performance enhancer etc is all set to auto. this had me bouncing between 3.9-4.0GHz. I testing R15 and some games to get some ideas. I noticed my volts about mostly be 1.375 range, but idle over 1.4. My heat in R15 was about 82 by the end of it.
Then I enabled PBO- same tests. again ranged from 3.9ish -4.1ghz a few times. Heat for R15 hit 92c at the end. Score was 60 points higher than me leaving at stock settings/profiles. Games I test/benchmarks were almost identical, some slightly better/worse.
AI Suite III (yes the Auto OC that everyone hates). Only boosted me to 3.8GHZ on all cores at like 1.28v. R15 was bout 140 points lower than PBO but never hit more than 75c. Now gaming benchmarks were beter by a few FPS and I seen a % boost on 3d mark for every test I ran.. This to me seemed very odd. BUT for some reason no matter what I do for settings the Suite always overrides my power plan to balance and puts my PC to sleep. had few lock ups, so I uninstalled it.
Lastly, Last night I got my new cooler installed. I ran r15 again all stock MOBO settings. My score was the same as before within a few points but my Temps never got past 61c. So it dropped 20c over the stock ryzen cooler. My goal was to not be gimped by my CPU in gaming at all. I'm not sure I am in most cases but I do notice alot that when I run in game benchmarks etc my GPU never goes over 95%.
Sorry long reply