So people may notice their game drop somewhat to drastically in FPS when using the 4GB Launcher, and driver tweaks in Nvidia Control Panel / CCC not being applied.
I have changed many (80%) landscape taxture with high definition texture to 2048x2048px resolution but I stayed faithful the original not to spoil the design.
This tutorial will guide you step by step, giving a complete description of the Skyrim configuration files (Skyrim.ini and SkyrimPrefs.ini) and how to edit them for the best possible graphics on modern PC hardware.