AMD did say as much about Zen 3, however, as moinmoin points out…Zen 5 was said to be a new architecture with a grounds up design.... but so was zen 3. And yes, zen 3 was really impressive, no doubt about it, but I doubt it would be 'a new reset for CPU architecture at AMD' like zen was for them.
Personally I am expecting something like zen 3 or Golden Cove levels of increases.
But hey who knows
I 100% agree as this is usually the case. However, AMD has said Zen 5 is something new altogether. (don’t remember the exact quote)The thing about these ground up designs is not that all of the core changes, many of the blocks are still the same. Even Zen 1 did lift significant blocks from the previous construction cores. Between every gen work on blocks is done were deemed necessary and fruitful. With every even gen the blocks are optimized within the given structure, making the most of that ("picking low hanging fruits"). With every odd gen the way all those block are connected and interact is essentially reset and rethought, removing structural bottlenecks and making better use of all the blocks, and that's the big deal. That step is exactly for avoiding getting into dead ends of diminishing returns that would be the result of never touching the fundamental structure.
It is quite possible they redesign the chip completely, or do something odd like introduce a new instruction set. (x86-128? 🤣) They could also just be saying this as a marketing claim like they did for Zen 3.
One thing I do know is the Zen core design has been very successful for AMD.
I do wish Microsoft, AMD, and Intel would move to eliminate legacy x86. We have emulators for that stuff now, and a full featured set of cores could be included for cases where an emulator is not appropriate. Shoot, chiplets would be perfect for that.