> While both your system are fast for multithreaded workloads, be warned MAME only uses > the one or two cores for most ROMS, and basically doesn't scale past 4 cores.
0.239 has fixes for some issues that were discovered in MAME's job system. In English, that means I see consistent improvements for 3D games up to at least 8 cores on my 3900X now. I didn't test exactly where the perf stops going up, only that it's somewhere between 8 and 12.
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