This isn't a raw performance example, cause honnstly todays CPU'd can't keep whit the vidoe cards. It's an example to see the difference between the rendering quality of nVidia vs ATI and an example of AA.
As for the 9700 outperforming the FX, it outperforms the FX at higher resolutions whit AA and FA enabeled. Don't really need tests for that, just need to consider the bandwith differences between the cards. FX has roughly 16 gb/sec while the 9700 has 19.2 gb/sec.
Annyways, if you really want numbers:
http://www.tomshardware.com/graphic/20030311/index.html
note the first shot is taken on the same system, just swapped the cards.