Performance of Unity vs Unreal Engine 5.0.0 late 2019 intel mbp 16''
It's too bad that Unreal Engine editor uses so much CPU when idle. Unity uses almost no resources when idle but UE5, like UE4, continuously repaints the screen as if it is a game by itself, as the Quarz debugger shows (the yellow flickering). Unity only repaints the game area, but UE the whole editor.