Hi ModCon9!
Congrats on your first AMD CPU and on it being a AMAZING piece of hardware as well!! The 5900X (IMHO) checks all the right boxes for being a all around great CPU for gaming, work, power users, etc etc. You are correct that P.B.O is along the same lines as iNTELs M.C.E. As for helping in gaming, I think that might be a mixed bag of results. So many factors come in to play (and opinions) showing gains and losses both depending on games, other hardware, settings, and on and on. In my own experience with PBO in gaming (5900X on X570S Master) the biggest benefits come from games that can utilize multiple cores. When looking at benchmarks & performance in gaming the power and the temperature required to obtain top results is equally as important to me as the actual results.
The new PBO2 does help a great deal across the board from what I have seen first hand and read about. It utilizes algorithms to push clocks higher for longer, often while using less power and producing less heat. I find the best results are when you actually dial in the settings for your CPU, Mobo, Cooling, etc using Curve Optimizer & other tools/settings in the BIOS. AMD has done a wonderful job in providing video's, docs, demo's and more explaining the hows & whys of PBO2. I would recommend checking them out as well as downloading (and learning about) Ryzen Master from AMD.
