I have a ATI Rage Furry Maxx. When i go to Madonion and use there performance analyzer on any page that is linked it tells me that a TNT2 Pro will give me a 43% increase in performance. I don't understand this because I also have a TNT 2 Pro and the ATI Rage Furry Maxx gives me 1000 points higher in 3dmark 2000. I also get lower frame rates in games with the TNT2 Pro. Is this a bias by Nvidia towards there cards. Is this Nvidia marketing ploy?

It means you cant base anything off synthetic benchmarks, stick with whatever card runs your games the best.