Do they have differences in performance?
Please compare in both small (i.e. 5 gameobjects with 4 components each) and large scales (i.e. a stress test).
They have a big difference in performance, depending on what you have running on the component. It has a lot to do with whether or not you’re running InvokeRepeatings, Coroutines, etc.
Here’s a great post to describe what to do in each situation.
Hope this answers your question! Good luck.