Observations on the Power plans on a Ryzen 7 1700 base/default clock:
Default Balance - Allows single core boost performance of 138-139 on C15 compared to High performance or Ryzen AMD Balanced
High Performance / Ryzen AMD Balanced - 130 single core on C15
I think this has to do with minimum power state on Power management that allows the single core boost.
There must be percentage ratio that triggers the single core boost. If I have the time later I will try to establish it, but my hunch it is range from 9-49% (almost half of maximum power state) or 9-33% (a 3rd of the maximum power state)
I don't have a reference on the levels/range of the R7 1700 PStates, I think the percentage should set to the lowest PState of the processor. It will certainly differs from other models and this will help everyone else.
Overclocking will be a different altogether
Got it to 140 on C15 single core performance at 17% minimum power state. Beyond this it slides back.