Large Map Tiles


Noob here, I’m a 3D modeller who is generally curious with world making and have a question regarding tiles. I know unity and other software have built in world sculpting tools but If I wanted to do a similar thing in Blender would it be possible?

From what I understand large worlds have tiles as to break up the areas being loaded into memory. The only way I could think to do that in Blender is to sculpt a large world, bale the height information onto square tiles, generate that height data and convert it to a real mesh so that all the seams of the tils match up perfectly.

Has anyone done this? Is having the terrain as a mesh and not a height map more advantageous performance wise?

Thanks for any info.