Upgrade from X800XT AGP?

[Darren555]

I am sorely tempted by the Gainward BLISS GeForce 7800GS
Silent 512MB GDDR3 AGP card. I currently have the 256MB ATI X800XT and thought this would be my last AGP card before moving onto a new platform. But to be honest my A64 3700+ S754 nF3 system isn't that much slower, if anything, than the best out there at the moment where gaming is concerned and as far as I can see it is the VGA card that makes all the difference at the resolutions I play at (1280 x 1024 4x AA 8x AF).
So I was thinking of selling my current card and upgrading to the Gainward and keeping my system for a fair while longer.
Will there be a big difference in performance between the two cards on stuff like HL2, FarCry, BF2 etc?

Cheers,

Darren

 

[Darren555]

Thanks guys. I wish there was more high end choice for AGP cards.
I have been looking at the S754 PCI-e motherboards but am loathe to change as my DFI mobo is the the best I have ever owned.