Recommended PC for Quartus Prime Pro compilations

The knowledge base item is from 2013, I understand this as it is still valid for Quartus Prime Pro? Does it make sense to invest into more CPU cores? Could you please confirm or deny whether QPro fitter uses only a single core (as stated somewhere else on the forum)?

Does it make sense to have a CPU with four memory controllers instead of the usual two? Will this have significant impact on compilation time or does most of the computation happen in chunks of netlist stored in the CPU cache, so the DDR memory bandwidth is not that relevant to compilation time?

Thanks for all the answers :)