Re: Everquest 2. I think I may have a partial solution to stuttering.
I dout a 9700pro in HQ would run faster then a 6800 in HP... Actually I know for a fact since I beta'd with a 9800pro and playing retail with a 6800GT. The 9800pro was able to run the game at HQ but would chop up VERY often.
Im running the game most of the time (all the time when im not in a town) smooth with 1600x1200 @ High Quality + More (I increase rendering distance and set the LOD to max).