Is it possible to upgrade sharepoint and migrate from a single server environment to muliple servers at once?

Problem:  Sharepoint 2013 server needs to be rebooted multiple times a week due to site availability and functionality issues.  Sometimes it's search using too much ram and other times it's one or more site collections in IIS.

Proposed resolution:  Upgrade to Sharepoint 2016 and split out indexing and SQL to their own servers.  Current deployment is a single server.

Question:  What is the recommended procedure for upgrading sharepoint and splitting services or is this seperate unique tasks?  What is the recommended CPU/RAM for each server type?

Current environment:  Sharepoint 2013 SP1
Server 1:  Web/Administration/Index/database server
-Windows Server 2008 R2 SPI
-SQL server 2012 SP1
-4 CPU and 14gb RAM
Server 2:  Office Apps
-4 CPU and 8gb RAM

Planned environment:  Sharepoint 2016
-Windows Server 2012 R2
-SQL Server 2014 SP2
-1 Web server
-1 administration server
-1 database server
-1 Office apps server
Ryan MignosaSystems EngineerAsked:
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Walter CurtisSharePoint AEDCommented:
There are a few things to consider.

Moving to new hardware for everything?
If so, you can build your new farm with multiple servers as you describe, than migrate to the new farm from the old farm.

Remaining on the same hardware?
There is no direct upgrade path for remaining on the same hardware.  I could be tricky if you stay on the current hardware, adding additional servers. In that case, build the farm with the new servers you add, then migrate from the single server you have. Once migration is complete you can reuse your single server as a server in the new farm, after a new OS is installed on the server.

For specific requirements, go to Technet for the most current information.

Hope that helps...
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Ryan MignosaSystems EngineerAuthor Commented:
Walter,

Thank you for the input.  Yes all new servers and no in-place upgrades.
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Walter CurtisSharePoint AEDCommented:
Thanks
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