I've noticed in my audience a preference for the Mac Pro 2013 over the Mac Mini M1, Both computers can be had eBay for fairly similar prices assuming you're buying upper end Mac Pro 2013 or a bottom tier Mac mini M1.

Ivanky discount code for Amazon and official website:
E3TA5QXPFXB5

The Compiler test used in Phoronix:
https://openbenchmarking.org/suite/pt...