Anybody know the performance equivalent of a SPACEMIT K1/M1 X60? Is that like using a Tualatin P3 or maybe a first-gen Ryzen?
The SpacemiT X60 core is in-order dual-issue, similar to the ARM Cortex-A53 in the Raspberry Pi 3.
However, it has 2×128 vector units (supporting 256-bit vectors) which can run in parallel to the fp unit, whereas the A53 is more like 2×64 which can do either two fp
or one 128-bit vector operation per cycle.
The K1 has eight cores though, compared to four in the Raspberry Pi 3's SoC.
Half the cores in the K1 has SpacemiT's proprietary AI instructions (matrix multiplication).
Otherwise, I think the big point for RISC-V fans is that it is RVA22 profile compliant, and has Vector 1.0 — and those are bound to be the new baseline in functionality for future RISC-V application processors.
The benchmarks I've seen so far haven't been compiled for RVA22, so they don't show the CPU's full potential.
They should be marginally better.