Former Intel CPU engineer details how internal x86-64 efforts were suppressed prior to AMD64's success
Former Intel CPU engineer details how internal x86-64 efforts were suppressed prior to AMD64's success
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Former Intel CPU engineer details how internal x86-64 efforts were suppressed prior to AMD64's success
Itanium was an interesting architecture but it relied on compilers to build efficient code for it's bundles. This compares to x86 which dedicates loads of silicon to getting the best performance even out of mediocre code. Unfortunately the Itanic architecture was really ill suited to emulating the other.
ETA: rm dups.
It dedicates dedicated silicon?
All the cache and prediction logic which eventually gave us spectre is basically compensating for whatever crap random compilers kick out.