Under 'Effects Detail' here are the results: Very Low - Seemingly nothing Reasonable - Enables AA Normal - Enables that annoying bloom High - Dunno, possibly does something with the depth of field since those are the only 3 things it mentions I'm just going to leave that at very low since I like to force my own filters so I can get the result I want with minimum resource impact and I don't like the bloom. Though having enhanced depth of field would have been nice, too bad MS are dicks and dumbed it down all into one option for the standard full-retard derp with an Xbox. Turning up texture quality will enable AF. Since I don't know at what point it stops increasing texture resolution, and enables AF instead, I won't touch that option and just leave it at very high. What's the worst? It'll use low AF instead of 16X. The shadows are a huge hit to resources, even the very lowest 'Reasonable' setting but it just looks wrong without shadows. The highest uses the typical soft shadows which kick video cards in the nuts. So my recommendation is to max every setting except their effects and shadows then to manually fore whatever filter you like over it.