SkyGfx carries the exact graphics of the PS2 and Xbox in the PC version of San Andreas.
What's new in version 4.0:
"Diteyl" (texture overlay on top of the standard for better quality) texture with the mobile version;
Mobile reflection on cars;
Fixed the reflection on the car;
Slightly modified the "neo" cars (change carTweakingTable.dat);
A new feature of rendering reflections in real time (neo, leeds, mobile), (can cause problems!);
Disconnected reflections on the wheels;
Removed "PC" reflections of the buildings and replaced with XBOX-style;
Fixed distribution of the reflections of buildings (fixes bugs parachute on the PC);
Fixed tags (graffiti);
Fixed the "neo" a drop of water/blood.