Why would AWS post this kind of data? They aren't selling you the chip nor the server. It's a trade secret.Sure but I mean manufacturers would publish these kind of benchmark results themselves if their claims were true. Ampere computing published nice charts showing "estimated" performance and power metrics of their ARM Altra Server platform in March: https://www.nextplatform.com/2020/03/03/ampere-aims-for-the-clouds-with-altra-arm-server-chip/
Server OEMs share these data willingly, because it's a differentiating factor. It's not about the actual chip. It's about why you should buy Dell over Lenovo etc.The only reason I can think of is that the results are too underwhelming to be openly published.
It's slightly different with ARM-based servers, because... no one buys them, no one cares and actually just a handful of popular companies even make something.
ARM absolutely makes sense in cloud and that's probably where it should stay (at least until most of us use ARM PCs).