Geekbench publishes results so you can see where your Mac stacks up, performance-wise. This may help if you comparing a choice like Intel i5, i7, and i9.
For entertainment, when we got a new Mac desktop with an Intel Xeon and a new Mac laptop with Apple's M1, we raced them by running Geekbench 4, which must run in Rosetta 2 on Apple Silicon. The laptop won, 5654 to 5395.
(7134)