The ATI X800 is a little faster then the Ultra 6800 as shown by barefeats.
xlr8yourmac has a nice review of the ATI and here's the link for their video card page where you find lots of useful stuff.
For me, I prefer ATI, thier video drivers seem to be better optimized. The 2d images such as fonts seem to look better, but that just might be my imagination.
Overall for a $100 less then the ultra your getting a faster card, the only thing your sacrificing is two dvi ports. If however you have the older style display from apple with the ADC connector then the ati is definitely your choice.
Two other advantage the X800 has over the 6800 is size of the card. The 6800 blocks the pci port next to the agp port. The Ati encroaches but doesn't block and noise. I've read reports the fans on the 6800 are loud. The ati while I can hear it don't seem to be obnoxiously loud. Since I never heard the 6800 in action I can't really comment but I do throw it out there.
Mike
xlr8yourmac has a nice review of the ATI and here's the link for their video card page where you find lots of useful stuff.
For me, I prefer ATI, thier video drivers seem to be better optimized. The 2d images such as fonts seem to look better, but that just might be my imagination.
Overall for a $100 less then the ultra your getting a faster card, the only thing your sacrificing is two dvi ports. If however you have the older style display from apple with the ADC connector then the ati is definitely your choice.
Two other advantage the X800 has over the 6800 is size of the card. The 6800 blocks the pci port next to the agp port. The Ati encroaches but doesn't block and noise. I've read reports the fans on the 6800 are loud. The ati while I can hear it don't seem to be obnoxiously loud. Since I never heard the 6800 in action I can't really comment but I do throw it out there.
Mike