Right the arm stuff is probably in the "it runs" camp. Largely because its SVE, which is barely available, and the code written to utilize it has largely probably been tuned for the a64fx, or maybe the gravaton v1's.

Both of which have considerably different memory and vector size/issue characteristics. So three different SVE variations now, and the previous two show significant uplift when given custom tuning (ex: see gcc -mtune=neoverse-512tvb, vs the custom a64fx compiler benchmarks). Arm put a bunch of effort into creating an instruction set that is microarch agnostic, but then its not exactly worked the first couple tries. Maybe that will be fixed with V2 and all SVE cores going forward.