Beelink motherboards

Can anyone "educate me"?

I read the CNX Software review of the Beelink MINI MX sometime back.

CPU-Z said the Mini MX had a p200 motherboard

My M18 has a p200_2G motherboard - the Qbox S905 (reviewed here on Freaktab) also uses the p200_2g motherboard.

Kernel same on both 3.14.29

What is the difference between a p200 & p200_2G motherboard?

Can one assume if a piece of software / firmware will run on the Mini MX it will also run on the M18?

How common is the p200 "range" of motherboards?

For instance - the Zoomtak T8V runs an S905 - would this have a p200 motherboard?

Apologies if this is a dumb question?

Thanks