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> ARM currently outperforms RISC-V massively Only if you compare CPUs with vastly different microarchitectures e.g. a 4-wide OoO Arm and a single issue in-orde
by brucehoult 3y ago
> ARM currently outperforms RISC-V massively
Only if you compare CPUs with vastly different microarchitectures e.g. a 4-wide OoO Arm and a single issue in-order RISC-V, or an Arm running SIMD code to a RISC-V CPU without SIMD/Vector.
Arm has more advanced microarchitectures and Neon deployed in the field right at this moment, certainly, but RISC-V vendors have cores up to Cortex-X3 (SiFive) or even Zen/M1 level designed, simulated, and announced and those will all be in chips you can buy in 3-4 years.
Comparing similar to similar e.g. SiFive U74 vs Arm A55 (on code not using Neon) you'll find very similar performance, and in my experience the U74 usually winning.