Originally posted by Weasel
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If RISC is so fundamentally gimped on performance, can you please explain why Apple's arm64 JS engine running on my iPad Pro outperforms all JS engines running on the Skylake/Haswell laptops I use, and does so with only a heat spreader? Can you explain why during the 90s, high-end RISC processors typically outperformed x86/68k cores? Is it maybe, just maybe, possible that the microarchitecture/application-specific optimizations and extensions/implementation details are far more important aspects of high-performance CPUs than the base ISA?
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