Comment by NitpickLawyer

Correct. There are 3 main ways to "gimp" high end GPUs meant for training - "cores", "on-chip memory speed" and "interconnects". IIUC the H800 had the first 2 unchanged but halved the interconnect speeds.

H20 is the next iteration of the "sanctions" that I believe also limited the "cores" but left the on-chip memory intact, or slightly higher (from the new generation).