Of course, there's no substitute for trying an A20-based board and finding out if it's good enough for the tasks you need to do. And Luke's recent videos suggest that it is indeed good enough for several common tasks.
But I can't be the only one who's curious about how the A20 compares to other processors, especially various x86 processors.
This is where UnixBench (https://github.com/kdlucas/byte-unixbench) comes in handy. It's an open-source system benchmark suite for Unix, going back a couple of decades. Someone took the time to run UnixBench on a variety of computers, including the A20-based Cubieboard2, and published the results here:
https://enchufado.com/proyectos/unixbench.html
Of course, that doesn't factor in graphics performance, but I thought it might still be worth sharing.
Matt