Quite a few, all with GPUs:

2011 (Nvidia)
2012 (Nvidia) x2
2019 (AMD)
2019 MacBook Pro with a Vega20 and a Nvidia 2060 super egpu.

Thanks all, great info.  OK so that makes more sense now, its MacOS itself which is a limiting factor so best to use Windows via Bootcamp or Linux boot-USB/OS to maximise the gpu.

Any thoughts on HoneyMiner?

Yep, I know how to do this, but I don't want to switch back and forth.  Prefer something MacOS native.

Hi all, currently I am using NiceHash on my iMacs under Windows.  Unfortunately I don't like their MacOS solution.  Any recordation for MacOS native miners? I did look at Honey Miner but it scans as a trojan and google doesn't really confirm if its legit or not clearly.  Thanks in advance.