I cannot seem to find recent or relevant information on the performance of the setups mentioned in the title to determine which is the best choice. I know the 4870X2 CF is the most powerful combo but it just doesn't fit into my budget right now. The ones in the title are what I can afford. All the benchmarks I can find are from 2008 and I would like to hear from a well-rated reviewer or someone with a rig having one of the video cards mentioned. What I'm really concerned about is how the latest drivers affected the performance of these old yet powerful GPUs. Also, do the latest drivers fix the inherent microstuttering issues with GX2s? How much was the scaling improved over the past two years between the setups mentioned?