Just wanted to let anyone know you can run this game with an i3-2100 and integrated video (Intel 2000 graphics) on low quality details at 1600x900 with no choppiness. I just let the game use optimum settings for the capabilities. I didn't fire up FRAPS, but the game is totally playable and smooth on this kind of setup. Very enjoyable and my frame of reference is that of running 2x780s in SLI on a 3930K as my primary gaming machine.
I added a GTX 650 for $99 after rebate to the i3-2100 system (and same 1600x900 monitor), and the game plays on high quality just as smoothly. Some details are turned down, but I just let the game pick the best setup, again, for the situation and the game looks spectacular.
This is the first game to have hooked me since BF3 and has actually taken over my BF3 time. I haven't played BF3 in a month.