Details on different graphic settings (TMI)

edited July 2009 in Game Support
This may have been asked before, in which case just direct me to the answer. What I want to know is, what is taken away with each graphic setting. I want it to run fairly smooth but I don't want to miss out on some nice details. Rather than fiddle about with each and every graphic setting I would sort of like a guideline as to what the numbers mean, thanks :)
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