With MAME 0.274, an ARM64 dynamic recompiler is introduced - a much anticipated and very welcome development. This immediately renders these Intel64 builds for ARM64/Silicon Macs irrelevant, as now the 'native' Silicon build runs faster on all games.
I nevertheless provide this Build 0.274, as it also decently refreshed the Intel64 recompiler according to the release notes.
Please also note that the official SDL MAME website provides an Intel64 build for MAME 0.274!
https://sdlmame.lngn.net/