Yes, comparing "cores" across providers is an extremely sketchy proposition. Obviously not all CPU cores are created equal, the motherboard and RAM configuratio

Yes, comparing "cores" across providers is an extremely sketchy proposition. Obviously not all CPU cores are created equal, the motherboard and RAM configuration has an impact, etc. Worse, there are a variety of different models out there - reserved cores, CPU prioritization, bursting, etc. -- which can't be summarized in a single number. Not to mention that performance may not be consistent over time or from machine to machine, and on at least some providers, supposedly-equivalent instances may be running on different hardware with different performance. We're open to suggestions here. For now, we've noted this caveat in the blog post and in a couple of places on the page, and we deliberately didn't include any sample queries that sort by cores.