What I want you to concentrate on is the distance the sim will render when close up to the plane. The further away from the plane you are, the more the ground and cloud textures will render. its when you get close to the plane that ground scenery begins to blur.
So...PMDG's 737-800 American Airlines out of Seattle-Tacoma, WA

You can even see Seattle in the background towards the middle right, and the buildings are still rendered with textures which are hard to see because of the compression and resolution loss

PMDG's 737-700 out of Anchorage, AK


