Author is just stating the differences between the benchmarketing hardware and his own. Not comparing new hardware and one DB with old hardware and other DB.
But those are needless comparisons that make no sense to even mention. Of course the performance profile is different. That was the original point, if I understand correctly.
EDIT: GP followed up, I did not in fact understand correctly.
Having re-read it, I now can't decide. It would be a little silly if the author is completely different devices, so I'm going to stick to that interpretation.
https://memgraph.com/benchgraph/base?condition=hot&datasetSi...
The "By" columns compares those results to the new test suite on the ~10y newer cpu.