Not quite, and AMD varies greatly depending on generation (FX, Ryzen, etc).
If you're asking for Ryzen;
Ryzen can either have 3, 5 or 7. This can be seen as similar to Intel's i3, i5 or i7 as they are usually competitor equivalent to each other. The first digit in either 1xxx or 2xxx represents the generation, 2000 series being the refreshed Zen+. Second digit represents the 'power' of the chip in the sense that the higher chips are higher models, so 2500 > 2400 > 2300, etc. Finally, the 'X' at the end of some of the CPUs on Ryzen does not represent unlocked (meaning overclockable) like it does on Intel. The X represents XFR (Xtended Frequency Range) which simply put, means the CPU will automatically boost higher than the non-X models provided it is under the right conditions (temperature and such). Other AMD series like FX are a completely different ballpark though. Hope this helps!