It's pretty common for people who own Intel cpus to say 5th gen or 9th gen or to easily find on the device or in the software the name of cpu like i5-4670k or i9-9900K
For years CPUs had numbers that went up: 286, 386, 486, Pentium.
After that, it was Mhz and Ghz that people used to rate a CPU.
But none of those things are as relevant as they used to be.
So what number goes up? i3, i5, i7, i9. That's what Intel is telling us. That's the number they want us to see.
How would you differentiate?
> MacBook Pro (Retina, 15-inch, Mid 2015)
> Processor 2.8 GHz Quad-Core Intel Core i7
prettly clear there