>All the "high performance CPUs" right now are just dev kits, so I don't see how there can be fragmentation in a market that does not yet even exist. It comes

>All the "high performance CPUs" right now are just dev kits, so I don't see how there can be fragmentation in a market that does not yet even exist. It comes straight from the "RISC-V know the facts" FUD campaign ARM infamously ran. Yet, not even these dev kits suffer from "fragmentation". Basically: - Previous wave implements RVA20, some of them with custom extensions, such as a harmless pre-ratification V extension. - The open software ecosystem is built for RVA20, which the hardware supports. Vendors run their experiments within custom extension space, no harm is done. - Current wave implements RVA22 with the ratified V extension, some of them with harmless custom extensions. As newer RVA profiles build on older RVA profiles, these chips run RVA20 code no worse than the previous wave.