I used John IV benchmarks as a comparison as they are the best known and documented scores.
While MAME scales almost one to one with clock speed, It gains almost nothing from high core count CPUs, as it simply doesn't scale beyond few cores.
Intel's IPC has only improved by about 10% in the last half decade, most of their resent performance improvements have come from higher base & boost clocks, and adding more cores.
I benchmarked a 9900ks @5.1ghz back in late 2019 and it only managed a 25% uplift over johns IV i7 6700K 4.5ghz scores and that's with a 13% clock speed advantage.
There was zero IPC gain from the 9900k to the 10700k only a small clock speed bump.
I had planned to run more benchmarks next week, including on a 10th gen Intel CPU to give a better comparison.
But I'm sure this will show that ZEN 3 performance is now comparable with Intel CPU performance in MAME, something that has not been true since I started benchmarking MAME back in 2007.
Until now AMD's IPC and clock speed deficits meant it just couldn't compete with Intel. The ZEN 2 CPU closed the gap a lot, but their ccx and cache layout made for inconsistence result in MAME, and it's IPC performance couldn't overcome the clock speed deficit when compared to Intel.
This was a quick and dirty benchmark run, it was just a system sitting on the test bench at work that I managed to spend 20mins testing. It's a sub optimal setup but the number were still very good.
If all else fails, Burn the manual.
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