Hi lord 
The landscape i showed is the same size as an 8k resolution landscape. Only it is using a 4x resolution by scaling it up to 200.
255x255 quads, 2x2 sections, 8x8 components, Scale 200,200.
Main reason is so i can use all water features without having to create hacky methods to make it usable. Now the render targets are within intended targets. It does mean that the overal poly resolution of the landscape is lower but since i am using virtual heightfield for the tesselation at close distance it doesnt really matter. Hope this cleared it up a little 