There's a old Usenet post I really like comparing different RISC and CISC architectures from way back. https://userpages.umbc.edu/~vijay/mashey.on.risc.html ht

There's a old Usenet post I really like comparing different RISC and CISC architectures from way back. https://userpages.umbc.edu/~vijay/mashey.on.risc.html https://userpages.umbc.edu/~vijay/mashey.on.risc.html If you look at things here in 2020 it looks like it was essentially the RISCiest of the CISC architectures, x86, and the CISCiest of the RISC architectures, ARM that succeeded in the modern day while architectures more tied to an ideological camp like Alpha or SPARC or VAX have all died out in our current era. That makes me think that another very ideologically RISC architectures like RISC-V will, at the very least, have a tough row to hoe in getting widespread commercial acceptance.