I still don’t fully understand this world, I ‘downgraded’ from an i7 to a slower i5, and my computer got faster. I wish they’d use sensible clear names for the generations so you can clearly understand what’s better.
That said, the difference between generations is pretty minimal thanks to Intel's huge process blunder last decade.
If you want to know which chip is actually faster for your workload that turns out to be a fairly difficult question to answer. A lot depends on what you're trying to accomplish and how your code is built.
I think even for the Mac Pro, they don't go into this detail.