cl16-16-16-36

hello guys, i heared that for ryzen is best to have 3200Mhz CL14 or 3600Mhz CL16. I know you can go with like 3000 mhz and change something in the cpu to make it work great but i dont wan to mess with this so iam asking whats the difference between this? (Crucial 16GB KIT DDR4 3600MHz CL16...