If all your settings are maxed. It will stop wild flickering on the ground while still having MIP mapping at full.
Actually thats only because you have turned up anti ailiasing on your graphics card and put on anistropic filtering because whilst without any of these you can have a mip map of 45 with no flickering you can have 4x Anti ailiasing and 4x Anistropic Filtering and no flicker at a mip map of 7






