This thread has started listing those RAM Kits that are built with Samsung B-die as it has been shown that these are achieving the best performance for Ryzen mainboards:
I really wouldn't know and been just eyeballing 3200MHz CL14 sticks and scaling other speeds with @wendell's spreadsheet if it matches and it matches.
I'm reading that thread's list so that 14-14-14 scales like that till 17-17-17 and then its starting to be like 18-22-22, 19-25-25 and have to poke all day which ways it works?
I asked this same question from tech review writer cadaveca, and it was he as well as Buildzoid that pointed me to the website I linked above. One tip he made in as far as searching for these Samsung IC was:
It is very unlikely you will find what you want in any kit with speeds under 3200 MHz, and it HAS TO BE 14-14-14.