[soulbadguy]

It's been said many time and the correlation between ISA and power efficiency have been debunked many time. ARM is power efficient because most ARM implementation are power efficient. Right now x86 AMD strix are about on par with qualcom x elites

[klelatti]

Agreed. That power efficiency is still a central part of the Arm value proposition though. Others are competing with real designs on this with Arm in laptops but not in - for example - smartphones.