For the 4000 series, they're planning on sharing the L3 caches between CCD's/ chiplets rather than per CCX. It will be interesting to see if the more cache availible per core, and more cores being able to access the same cache will improve the performance.

The speed AMD has raised caches & core-count lately is insane. When the max for mainstream CPUs was 8MB (and 4 cores) until only a few years ago. (Things seem to have stopped when quad-core launched, the Intel Q6600 was an amazing CPU at the time.)

I've been a computer enthusiast for over 20 years and didn't expect to see advancements to return like the good ol' days (Moore's law) to ever return. (I don't think Intel did either, halving their prices pre-launch is unprecidented!)