How optimised is macOS for a old PC?

I have a old core 2 duo t7250, 4gb ram, 500 hdd (7800 rpm). I was thinking of installing snow leopard or Mavericks/Yosemite, so i wanted to know how optimised are macOS for lower end hardware? I am sure snow leopard should run well as my pc is from that time, but I am sceptical about newer ones. Thanks!

submitted by /u/Sciencey-Coder
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