Its a very big difference. Maybe it doest come of that well in static pics, but when moving, playing, its huge. High has that crude green over every foliage and the flat lightning. And thats always in your face. Very high changes that, it might seem kinda subtle looking at a picture, but since everywhere you look is just trees and jungle, that subtle shading difference and shadowing applies to every single element, everything being rendered in a scene at one time, so the change is big. Back then, after i got a 8800GT somewhere in 2008 i replayed the game, played it when it launched on a 7600 something, so a very visually poor experience. And i really loved how smooth high felt to me at the time while playing, but i just couldnt leave the quality of very high alone. I remember switching between them and, damn, i cant turn this off, it looks to good like this. Richer image.