Microsoft released the sizing and capacity planning guidance for Exchange Server 2016, it is look like same Exchange 2013, following are some point
- Overall, the inputs to sizing formulas stay the same from Exchange 2013 to Exchange 2016
- Must follow the process for multi-role deployment sizing in Exchange 2013.
- Slightly increasing the processor requirements for Exchange 2016 (compared to Exchange 2013)
- Guidance on maximum recommended cores and maximum memory size for Exchange 2013 also applies to Exchange 2016.