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Or to put it more strongly: The multi-core comparison makes no sense. If the goal is to compare performance per core, as a way to evaluate CPU efficiency in th
by comex 6y ago
Or to put it more strongly: The multi-core comparison makes no sense. If the goal is to compare performance per core, as a way to evaluate CPU efficiency in the abstract, then they should be comparing equal numbers of physical cores, not logical cores.
Such a comparison does miss some practical benefits of the ARM instances. The ARM instances seemingly have more physical cores available on a single AWS instance – but “performance on a single instance” would be a different comparison, one where the Intel instances shouldn’t be limited to 64 threads. And the ARM instances may have a cost advantage (I haven’t checked), but performance for equal cost would again be a different comparison.
- jsnell 6y agoI agree that the article should at least have mentioned the cost, to allow for comparison on a more meaningful basis than perf per core. Though in the end that makes things look worse for Intel. The c5.18xlarge (Xeon) is $3.06/hour, m6g.16xlarge (ARM) is $2.464/hour.