The people who do massive templates for orchestral are using VE Pro anyway, and the real choice is ergonomics/workflow. I mean some people are gluttons for punishment. The workaround for getting multiple MIDI Ports in REAPER is a kludge, out of poor initial design considerations, wrong tool.
The workaround in Logic is less tortuous, maybe but also a kludge. Integration with DP leaves a lot to be desired.
So, CPU. I don't need to know. It's about realtime performance and it may be seen that the most robust CPU on earth is not necessarily going to out.
When I have performance or stability problems, it's not that I'm out of cycles or RAM, the problem has perhaps more drivers, and more subtle drivers.
A whole lot of realtime problems gets down to some issue with the hardware, locally or attached as peripherals.
With onboard audio drivers I could need as high a buffer as the system can use before balking, with 500+ ms of latency, or "192" and RT 8.5 ms with my interface (and only something quite extraordinary [Equator 2