What a click-baity title..
Amir Rajan, the maker of the excellent DragonRuby game engine put up a couple of Youtube videos comparing the engines performance to Unity and PyGame. Since I wondered how Godot 4 would stack up, I implemented the same benchmark there.
How did it stack up? They are quite similar from what I could see. DragonRuby a bit faster when handling 20-40k sprites but at 80k they were the same.
Code is here: https://github.com/SverrirValgeirsson/starfield_benchmark_godot
Is there any real take away from this simple comparison? Not more than both are plenty fast. If you land here since you are thinking about if you should use Godot or Dragon Ruby, then I think you can take speed out of the equation and focus on other differences. Both are excellent.