I would really like to see some more recent tests as Unity before the 2018.x releases had a "ux/easy of use/developer first" approach but they did significant improvements on rendering quality and efficiency on the 2018.x versions.
Technically, they're wrapping a native library, so it's possible to create a benchmark where there's no performance gap whatsoever. The bottleneck is at the intersection of the runtime enviroment with the library, which makes comparison difficult.
http://dcgi.felk.cvut.cz/projects/pacman-benchmark/thesis-co...