I am currently running a Hyper-V on Windows Server 2019 using a AMD Ryzen 7 2700 Eight Core Processor 3.20GHz with 64Gb RAM

I need a disaster recovery machine that can run the hyper-v machines if this stop working 

Should I look at buying the same processor for the new machine or is the CPU choice not that important as long as they are both AMD Ryzen?

More interested in future proofing than saving $200 or so. The machine I have had since 2018 and has worked well but it would be good to have more Virtual Processors