gta:sa graphics tool,

[Hitman]

What are AF and Ambient Occlusion?

Here you can compare  x16AF to low AF amounts (4x or trilinear)



the higher your AF is, the "sharper" and better look far away textures. AF isnt performance hungry, you wont notice a huge fps drop (the big fps drops in that picture arent up2date, the radeon 9800 is crappy and old, newer videocards are way better in AF

ambient occlusion makes shadows etc look more realistic, but eats lots of performance