Hello Leonard,
I am finding the following of use. Maybe likewise for you [If I am not to late with this post]. As I am working, I open up Win Task Manager and then check as to what and the amount of X resource[s] are being used for a certain task [ or when running concurrent tasks]. e.g. In Ray Trace mode what resources are being used to render the model of Y size etc. Are some being maximally used ? / the process is taking a long time to finish ? After awhile [ weeks for me] of doing this I get a better idea of what the specifications of a new computer build might be for my work.
Thank you,
Andy