I feel a bit bad sharing this:
https://i.imgur.com/Hp0o0x3.jpg
We’re currently running on a heavily optimised version of Ubuntu(very, very, very optimised with most of Ubuntu stripped out) on customised(Intel 2.1Ghz) hardware we’ve co-located across 10 locations world wide. We’ve designed everything from metal up to be performance oriented. On that test we had around 195 websites running.
We’ve seen better performance out of Intel than AMD when properly optimised, in addition, we’ve customised a fair bit of Enhance and use NGINX, LSWC drops our score a fair bit. We do however have a custom full page cache running.