So I built the rig with Ryzen 5 1600 (without X) - and was quite amazed. That thing is performing even better than my other 1600X CPUs 
I get stable 560 H/s from it - again at 3.8 Ghz. I guess it was a lucky pick of the CPU.
There is nothing amazing. 1600X is only overclocked 1600. I get stable 560 H/s from it - again at 3.8 Ghz. I guess it was a lucky pick of the CPU.But everybody can do it himself.