Operating system requirements for Sage 300 16.1.

I was reading about the hardware requirements for 16.1.  Our server 2012 R2 has 1.6 Ghz processor as does most of our windows 7 workstations.  Support just read me the same specs I saw in the installation notes.  Does anyone know if 16.1 will run on server 2012 R2 with only a 1.6 Ghz processor and windows 7 with same speed?  I hate to spend tens of thousands of dollars to replace all of our hardware.