minor correction: the geometric mean of the uplift of the specfp and specint benchmarks is 21.3%, which is perhaps notably better than 15% (up to interpretation

minor correction: the geometric mean of the uplift of the specfp and specint benchmarks is 21.3%, which is perhaps notably better than 15% (up to interpretation, that). The geekbench numbers comparing the iphone 12 pro to iphone 11 pro average to around 19% difference: https://browser.geekbench.com/ios-benchmarks/ https://browser.geekbench.com/ios-benchmarks/. A few caveats: A compiler change made made the libquantum uplift (a part of the spec benchmark) huge, and non-representative of hardware changes. Conversely, the geekbench 5 multicore results are actually worse for the iphone 12 pro vs. 12; hinting that they're over-boosting the iphone 12 pro, so peak perf is likely actually a little better (from the hardware's perspective, not that an app can do much about it). In any case, let's call it a 20% uplift with the same amount of threads, very respectable. Another caveat: AMD may not be able to get the same 20% uplift from 5nm that apple does. Without any expertise in this matter I can only repeat what others claim, but I've heard people say that it's hard to make x86 wider (i.e extract more ILP) because the instructions are variable length, making lookahead more difficult. I guess we'll see next year with zen4 if that's true!