That was disproved 11 years ago: https://www.extremetech.com/extreme/188396-the-final-isa-showdown-is-arm-x86-or-mips-intrinsically-more-power-efficient https:

That was disproved 11 years ago: https://www.extremetech.com/extreme/188396-the-final-isa-showdown-is-arm-x86-or-mips-intrinsically-more-power-efficient https://www.extremetech.com/extreme/188396-the-final-isa-sho... The CISC decoder is like a "decompressor" that saves memory bandwidth and cache usage.