This was a dumb thread AMDCam, No offense, but do some more research. They are pretty much tied as far as performance goes.
They both have their ups and downs, matter of fact the X1800XT outbeat the 7800GTX in 3dmark05 by 1300+ points. It's the highest scoring single card for 3dmark05 available. It only outdid the 7800GTX in 3dmark03 by about 600points..
Just because it has only 16pipelines doesn't mean jack. It also has better image quality, I've seen screenshots of both cards on highest settings in halflife 2 on another forum, and it amazed me.
I think they are equal cards for the most part, in real games they are neck and neck, you can't really say one "Pwns" the other.
EDIT: Gollum, Dan obviously tries his best to use complete sentences and grammar, you correcting him like that makes you out to be an asshole.