I do have a mac, but primarily use the PC since easier/cheaper to get GPUs that can render. I will try it on my Mac later in the week and give you my thoughts. Its a 2012 Cheese-grater, 16 thread machine, two xeon’s, but at 2.66 Ghz. I am not aware of what portion or what aspects X-particles is threaded - if any. (perhaps much?)
My old Mac still performs better than my i7 PC (4.0 ghz) is traditional CPU raytracing, but of course lags quite a bit behind is most any single threaded operation. Says a little about Moore’s law I think.
Funny, though, I recently purchased a used Electron Microscope, much newer than one I have already rescued and refurbished. I was/am excited because the column optics and xy stage are motorized, which removes LOTS of labor. Its powered by old PC running SCSI, and Windows 98!!! I knew that going in, but thing is, for such an old operating system, its relatively brisk in the OS file system - 8 bit of course and 640-x480. The JEOL software runs well too.
Perhaps the “Necessity is the Mother of Invention” Hardware resources being what they were, programmers were often tasked to write very efficient code. Not a one to one analogy, but some part of that is true. Interesting.