“32GB will suit you for most mid-level single-threaded and multithreaded tasks, though you’re always going to get more performance for your multithreaded tasks as you upgrade,” Caldwell writes. “If you can afford to sink some money into your purchase, however, opt for 64GB.”
“By consumer standards, 128GB is a truly ridiculous amount of RAM,” Caldwell writes. “No Mac offers the configuration aside from the iMac Pro, and for good reason: The only reason to have this much memory is when you’re pairing it with a powerhouse processor like the 14- or 18-core Xeon W.”
Read more in the full article here.
MacDailyNews Take: If you’re buying an iMac Pro, odds are that you know how much RAM you need, but there you have it. Max out the RAM as your budget allows.