dude ur like the biggest douche...
Look @ the title of the post..
6600GT Vs. X800XL.
but now u pull from ur ass that its an SLI 6600GT??
well imo there is NOTHNG budget about SLI, so I'm not suprised... and U CANNOT compare SLi to a single card.. it works difrerently, jus t because theres 2 of them, it doesnt mean they are both working to maximum, please inform yourself more b4 you try and make such ridiculous posts