Mac Pro server vs. Mac Mini server

[One and a half]

A MacMini lacks one thing the MacPro tower has is space. The circuit paths are spread out by a factor of at least six. MacMini has components right on top of each other cross coupling noise due to proximity and the MacMini has no ground connection, so noise floats on differential signals. It's also easier to bond metals to a large frame for RF to be absorbed. Essentially the same processing power, therefore the Mini and the Pro share a similar rated power supply, whether or not they are superior to each other is another story, what remains is the more compact supply, the proximity to noisy components still remain.

I noticed the sound was different compared to a tower PC, MacMini and mini PC. I use a tower PC, it's the lesser evil among all.