First I say thanks to the OP for taking the time to get us those numbers.
Second, to all the people calling this move (GTX480SLI to GTX680) a downgrade, you are clearly don't seem to understand what really matters when it comes to 3D graphics performance.
Going from Max/Min of say 157.6/13.8 to 146.6/30.4 is NOT a downgrade, that's an UPGRADE. 1) Your monitor can't show you more than 120Hz except in a few RARE cases so anything over 120FPS is a waste of money/power/etc. 2) When playing a real game, if your framerate drops to 13FPS and you've spent ~$500+ on graphics cards, you've either been had, or don't know how to setup your rig. Since the human brain needs at least 30 FPS to perceive motion, you NEVER want to drop below that point. 3) If your monitor can display 60 FPS (60Hz as most LCDs do), you ideally never want to drop much below that.
So who cares if you can get 1000FPS in any case, you SHOULD prefer a higher MIN (and ideally AVG as many of these reported) in all cases. Furthermore, for those that didn't know, SLI 1.5GB cards isn't a 3GB setup, it's 1.5GB and that means you can't increase MSAA type features as high as when you have 2GB (even on a single GPU). That matters for those of us running 2560x1600 (even for just one monitor, forget surround gaming).
In summary, if the MAX is even close but the MIN goes up (DOUBLES as is the case with many of these tests), then it is an upgrade. In case it wasn't clear, if you're not running a 120Hz monitor, then anything over 60FPS is also a waste and since you should be running VSYNC (to avoid tearing), you'll never see anything over 60 anyway.
:)
post edited by rainabba - 2012/05/19 00:18:16