Considering that cool does not use ice, general achievable clock could be around 4.4GHz. But that score difference... very likely not due to "magic" OC. Likely from fact that one removes power limits when OCing. Therefore most of performance bump may come just from moving TDP from 65W to something like 125W. Normal people could max it by just moving TDP to 95W or so w/o any OC.

i'm really interested in this APU, i don't game that often so it looks like a perfect all rounder.

Wait, so this is a single die 8core cpu? Interesting.. And also based on new zen3?

-Tj-:

Wait, so this is a single die 8core cpu? Interesting.. And also based on new zen3?

No, it is Zen2.

The CPU-Z screens are the more interesting part,NB frequency

strongly implies that the size of the cache effects the maximum clock, which kinda makes sense , since if im not mistake, the cache clock is tied to the ccx/core clock, unlike modern intel cpus.