Unity UI Which is the lightest UI object between Button, Dropdown and Input Field?

Hello, I need to create a menu containing up to 400 slots (20x20), each slot contains a number that the player can edit and I'm wondering which UI object I should use for this task. Platform is PC and it's a menu I would like to build at runtime and that I probably have to destroy/build each time the player opens it.
Honestly I don't even know if spawning 400 UI prefabs is a problem at all, maybe I'm worrying for nothing. Anyway anyone can tell me which solution is lighter please? Thanks!

1- A text to display the number and a button to click that increases the number and resets it when it goes beyond the maximum value.

2- A text to display the number and 2 buttons, one to increase the number and one to decrease it. I like it more than the first solution, it's less clunky, but I have to spawn twice the number of buttons..in the worst case is 400 texts + 800 buttons.

3- A dropdown; this is probably the easiest solution, but is it lighter than the buttons?

4- An input field; this is probably the most annoying solution because I have to validate the input and again is it lighter or heavier than the buttons or the dropdown?

Thanks!