I am not defending apple in any way whatsoever, I even mentioned in the first sentence of the comment. I stated that they are able to do that because they compensate with compression and SSDs, applications in the background can be thrown in the swap and the user will rarely notice.
Actually, they're somewhat slow compared to the competition.
A 500GB M1 SSD gives you about 3.1GB/s of write and 2.75GB/s of read performance [1]. In comparison - a $219 Samsung 980 Pro benchmarks at 4.2GB/s of write and 5.2GB/s of read performance [2]. Both on Disk Test from Black Magic.
[1]: https://www.reddit.com/r/mac/comments/k2lhi8/ssd_speedtest_o...
[2]: https://www.servethehome.com/samsung-980-pro-500gb-pcie-gen4....
So like, 2 times as fast as any other SSD? No? The comment reads like marketing spiel.
[1] https://www.macrumors.com/2020/11/16/apple-silicon-macbook-a...
Fastest SSDs barely reach 200MiB/s on 4k block random writes (reads are usually slower, likely because they can't be cached if they are truly random):
- 124MB/s for Samsung 980 Pro (https://www.servethehome.com/samsung-980-pro-500gb-pcie-gen4...) - 211MB/s for Sabrent Rocket 4 Plus (https://www.servethehome.com/sabrent-rocket-4-plus-2tb-revie...) - 171MB/s for Intel 670p (https://www.servethehome.com/intel-670p-2tb-m-2-nvme-ssd-rev...)
32/64 queue depths generally do not apply to desktop computing since you are unlikely to read that many file streams simultaneously (or rather, your one program that you care about right now might be loading only a few files at once, which is what you'd perceive as the SSD speed: the fact that OS services might be accessing other stuff in the background does not help much there).