I have been running the game with the framerate set to the fixed option. Most, if not all of the guides to SFIV:AE that I have found on the internet have basically said that Fixed is the only worthy option and to not use it makes you an idiot. I assume since there is such a solid consensus the reasons for choosing fixed must be very clear. I just haven’t found a good concise explanation yet. I have tried all three in the single player game and have not really noticed any difference. Fraps displays a steady 60fps for all three and I don’t notice any serious input lag, slowdown or any other annoyances. I have tried all three out in the included benchmark mode and I seem to recall that variable came out with the highest framerate, which was about 78.5 fps. Smooth and Fixed were pretty even, with Smooth coming out ahead in a best of 5.
Can someone give me a brief concise explanation of each. Like does fixed drop frames, and if it does how can it be called fixed. I always assumed when frames were dropped the framerate fell with it.