Check out this interview with the actual architect of Zen, Mike Clark. https://www.youtube.com/watch?v=3vyNzgOP5yw https://www.youtube.com/watch?v=3vyNzgOP5yw

Check out this interview with the actual architect of Zen, Mike Clark. https://www.youtube.com/watch?v=3vyNzgOP5yw https://www.youtube.com/watch?v=3vyNzgOP5yw Probably the most interesting nugget is that Zen2 was actually considered a tweak internally and not a full uarch revision, while Zen3 is actually the clean-sheet revision. But it's just a good summary of the general tone and tempo of CPU development I think.