How is MIPS64 (latest release: v6, 2014) more "current" than SPARC (latest release: Sonoma, 2016)?
The "amd64" CISC architecture is technically inferior to RISC, it always was. I agree with you that arm64 is a quite common architecture, but, being optimized for "power-saving", I would never use an ARM for real work. Sorry, but I don't want my real machine to work like my smartphone.
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