What technical settings do I need for a 4x4km map?

I’m reading the Landscape Technical Guide and I can’t work out what settings I need for a smooth performing 4x4km map.

Any help would be much appreciated.

Overall size (vertices)----Quads/section-----Sections/component-----Component size-----Total Components
4033x4033----------------------63-------------------------4 (2x2)---------------------126x126----------------1024 (32x32)

This will give you a size of around 4km x 4km in unreal units (cm.) without scaling.
Though any landscape can be scaled, so technically any landscape of any resolution can be scaled to 4km.

Thank you very much Nano. Appreciate that