Cory5412 said:

Xgrid cluster would be really interesting use for such a group of machines, the biggest challenge is that the G4 mini only has 10/100 networking, which I seem to recall back in the day meant that your money was usually better spent on fewer bigger systems to do your task

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I assume you're talking about using this Xgrid for some sort of "historical" task; Xgrid as a technology has been dead for a while now. To be kind to the idea, I guess, going by GeekBench 2 results 50 Mac Minis (with an average score of around 800) would, with their aggregate score of 40,000, add up to around 40% more processing power than a 2013 Mac Pro with a single 12 core Intel Xeon E5-2697 v2. (Geekbench of around 28,000.) Since that CPU alone sells for north of two grand the pile of Minis must be one heck of a deal, right?

(Spoiler: there's a *lot* wrong with the math there.)