HT also doesn't help as much on FP workloads simply because there are less FP execution units to share, e.g. Skylake: https://en.wikichip.org/wiki/intel/microar

HT also doesn't help as much on FP workloads simply because there are less FP execution units to share, e.g. Skylake: https://en.wikichip.org/wiki/intel/microarchitectures/skylake_(client)#Individual_Core https://en.wikichip.org/wiki/intel/microarchitectures/skylak...