[bee_rider]

ARM's SVE is definitely interesting, but I do wonder if it is slowly be honing in on CRAY style vector processing. Which is definitely a cool idea, but a little different from the now-popular fixed-width SIMD. I don't know that it makes sense to call one ahead of the other yet -- ARM's documentation is clear that SVE2 doesn't replace NEON. "Mostly scalar but let's sprinkle in some SIMD" coding will probably always be with us (until ML somehow turns all programs into dot products I guess!)

RISC-V also has a variable length vector extension.

[brigade]

There's not really any reason for modern general-purpose CPUs to specialize for IPC lower than 1 like what Cray did. CPUs need wide frontends to execute existing scalar code as fast as we're used to, and if you're not reusing most of that width for vectors then the design is just wasting power.