Predicting "all this would happen" around the time of the new console announcements, I'm glad I went for a 4GB 670 FTW, which honestly paired with an i5-4670k runs the game beautifully at 1080p and at ultra settings (I've even turned up the ambient occlusion setting to max too), I've left the AA @ default at the moment, SMAA I believe. No stuttering. I believe 4gb should probably be the minimum on a GPU now to be "future proof".