Why is this so exciting just look at what happens if you harvest the cpu, gfx power of all idle pc's then you will be talking about insane rates. When they did the predictions for global warming it would of taken 10 years for the fastest supercomputer available in 2006 they managed to do a complete report within 7 months due to using thousands of idle pc processing power
Resolution, every tiny details will affect the fps. If you have it running at exactly the same specs then I find that hard to believe that your GPU is giving you 70 fps while the Quad SLI is only giving it 70 fps.