Compilation tends to benefit heavily from bigger caches & faster memory, yes. It's an area that Zen 2 & 3 have been absolutely fantastic at thanks to their huge

Compilation tends to benefit heavily from bigger caches & faster memory, yes. It's an area that Zen 2 & 3 have been absolutely fantastic at thanks to their huge caches as well. The iMac Pro's relatively slow 2666MHz RAM can't be saved by the also relatively small (these days) cache in the Xeon-W it uses.