Which model of the Surface Pro 3 run Minecraft better: Intel i3 or i5?

The i5 obviously.

And i5 or even better i7 chipset.

The i5, But don't expect the surface to run minecraft very well you will still need to run it on low graphics. Search for a laptop with a graphics card if you want to play Minecraft smoothly

Of course i5 because i5 is better at gaming than i3