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Streaming terrain performance

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Does tile height affect performance? 
Is it always better to have as small tiles as possible? Smaller tiles will result in less batches, however more loading/unloading.

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I personally create smaller terrains and more of them vs larger terrains. 
Terrain streaming is also the best way to get the best performance as you can do a lot of culling etc. 

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2 hours ago, oskarkogut said:

does tile height affect performance? 

No, it should not since the available heightmap data is simply "stretched" to create a higher terrain mesh, but the mesh does not get more detailed by this. You might get a bit better performance with occlusion culling if your terrain is rather flat, since an object like a house is then more likely to cover a larger area of flat terrain behind it than if the terrain behind the house would be a mountain that raises behind the house. But that is more a logical consequence of the flat terrain design than a technical "performance feature".

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