They should be reintroducing the 3D vcache [0] variants (X) in EPYC, with a higher cache/core ratio, that was present in EPYC4 (e.g. 9684X [1]) they for some reason wasn't available in EPYC5.

Makes a massive difference at high density and utilisation, with the standard cache/core performance can really degrade under load.

[0] https://www.amd.com/en/products/processors/technologies/3d-v...

[1] https://www.amd.com/en/products/processors/server/epyc/4th-g...