TBH, SweetFX is supposed to go along with ENB (which is the biggest contributor to added visuals) but only some games have it. AH doesn't support it so the changes made with SweetFX is not that noticeable besides some changes to the colors and anti aliasing. I can clearly see a difference when I use it, admittedly the difference isn't worthy of eye sex, but it's there and I definitely prefer it over the washed out colors when SweetFX isn't present.