Tech powerup has a pretty good article alreadyAlso, I wonder when we will see people showing more memory overclocking on these new ryzens.
Basically, looks like 3600mhz with decent timings or 3200mhz with awesome timings, are the targets to aim for.
However, it looks like the memory system is really well optimized. Becuase faster and/or tighter memory has much less benefit than usual. Especially in the productivity tests.