ini files and are related to GPU driver settings. The following settings do not require you to modify any. I advise you to take a lot a the guide, just in case. NOTE: Some settings may work with the Xbox360 as well, if you can modify your coalesced.ini file. This guide presumes that your PC can handle Mass Effect 2 at stock max settings don't be scared to experiment, performance varies on the PC platform and you should try to maximize what your personal setup can do! ini tweaks, FRAPS frame-rate measurements, and not least, compiling the best tweaks from various forums discussing Mass Effect 2.
The following guide is a product of two months of testing various driver versions, settings. Not only that, but the tweaks can improve visual quality without performance loss, and in some rare cases, even improve frame-rate. Mass Effect 2 is a great looking game, but it can be tweaked to look better. NOTE: I've edited and bumped up an old, test-thread I started on graphics tweaks, don't worry, you won't miss anything.