this post was submitted on 20 May 2024
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AMD's c cores aren't quite the same as Intel's e cores. Intel's e-cores are 1/4 of the size of their P cores, while AMD's c cores are about the same size as their standard cores, but a bit more square shaped geometrically.
Intel's e cores are completely different architectures from their p cores, while the only difference between AMD's cores are a bit less cache and a bit lower frequency.
Intel's are like comparing an Raspberry pi core to a full x86 core, while AMD's is like a lower binned regular core.
AMD has "big" cores, too. Their 3d vcache models trade multithreaded performance for more cache. Their "3 core tiers" approach is very obvious in their server line up:
https://www.servethehome.com/amd-epyc-bergamo-epyc-9754-cloud-native-sp5/