Originally posted by coder
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It's well-known TSMC exaggerates their node names, so what they call 20 nm surely isn't better than Intel's 22 nm.
You're essentially saying the CPU can work around the limited set of ISA registers through renaming, but that's forcing it to do more work at runtime by looking further out for unblocked instructions.
Considering your turnover point, there is one possibility: if MS released something compareable to Rosetta for Windows and Apple class ARM chips are aviable for notebook manufracturers then it could happen in a few years, not because ARM is superior but simply because its probably cheaper. If that doesn't happen we will see x86 still dominating Windows based machines in 20 years.
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