Is it more correct to take the Z390 or B365 chip?

Question

Iron

Hello! You need an mATX card. There is hardware i79700K, ASUS Strix 2070Super, SSD Samsung EVO 970 Plus, RAM Kingston HyperX FURY 32Gb (8x4, 3200MHz). Computer for games and work. The mother needs maximum performance. The computer will not overclock . What's the problem - I ran into a meager selection of mATX format cards. I want to get Azus. Choose from: ASUS TUF Z390M-PRO GAMING or ASUS ROG STRIX B365-G GAMING.
The soul lies more to the second.
But, the frequency of RAM will be cut.
Some guys say that this will not affect the performance of the game. Timings and all that, I'm not very good at it to be honest.
However, on YouTube there are head-on comparisons of 3200 and 2666, from which it follows that the RAM frequency affects and is very noticeable.
Please enlighten me, will I lose performance if I take ASUS ROG STRIX B365-G GAMING?
Once again - the computer will not overclock. I know that chipset B does not provide for overclocking, while Z does. I just want to unleash the potential of the iron that is.
Thank you if you answer to the point and without mockery :)

Answer 1

For maximum performance, it was necessary to take the Ryzen 7 3700X, it would have come out cheaper faster and quieter.
And right now, do not care, the difference is negligible.