"keep all the performance instantly" Depends what you mean by performance (most vendors ARM accelerated features are never used for compatibility reasons), as

"keep all the performance instantly" Depends what you mean by performance (most vendors ARM accelerated features are never used for compatibility reasons), as upping the core count with simpler architecture is a fair trade on wafer space. i.e. if ARM is using anti-trust tactics to extort more revenue, that budget is 100% fungible with extra resources. Note, silicon is usually much cheaper than IP licenses. One can ask polity to explain things without being rude to people. Have a wonderful day =3