I'm not so sure yet that the NVidia top-end cards are necessarily 'better' than the ATi top-end cards. In the long run the reversae may prove to be correct, and we can only really assess them based on today's games rather than tomorrow's games. Remember, the more time went on the more the 9xxx cards drew ahead of the FX5xxx cards in terms of performance. But I suspect that with their PS 3.0 capability, this time around NVidia might have the edge.
But I tend to discount the very 'top-end' cards from consideration because they're not realistic market place alternatives. Everybody talks about them, but hardly anybody really ends up having them! In the latest analysis done by Steam, for example, there are more people logged in using an ancient TNT2 card or onboard i810 graphics than there are people using a 'top of the range' card from either ATi or NVidia, for example!
In their respective price brackets, I'd consider the 6600GT and the 6800GT to be currently the best 'bangs per bucks' display cards available. In the lower price brackets, the 9800 Pro and the FX5900XT still hold the crown in their price brackets, and I'd not consider anything lesser to be still a worthy purchase for a gaming rig.
Catweazle
Grandad
4,335 posts since Mar 2004
Reputation Points: 229
Solved Threads: 149
If I was considering that sort of monetary outlay I'd be opting for Socket 939 AMD, rather than Socket 754 AMD, as future processor upgrades (or the initial processor purchase) can be more powerful than Socket 754 will ever go.
PCI-E has potential benefit over and above AGP. But don't expect to see results from that potential initially, because those will come from software rather than from hardware. When games make use of the additional bandwidth available, PCIE cards will perform well in excess of their AGP brethren. Current PC games, despite their complexity, simply don't use enough bandwidth to make a dent on the performance difference ;)
Catweazle
Grandad
4,335 posts since Mar 2004
Reputation Points: 229
Solved Threads: 149
I personally wouldn't change a moytherboard for use with the same processor. An AThlon64 3400+ coupled with a 6900 Ultra AGP display card would give bucketloads of performance, now and into the future. There's been no definite avnnouncements of an BForce4 Socket 754 motherboard as yet, although there have been strong murmurings that such a thing will be made available.
But I think the extra money a new motherboard would cost would be better used going into savings towards the NEXT major system upgrade.
Catweazle
Grandad
4,335 posts since Mar 2004
Reputation Points: 229
Solved Threads: 149
I've personally got an FX5900XT, and not planning to upgrade it for another 12 months at least. I'd be incredibly happy with a 6800GT, and as I said before, I think it's the best value high performance card available at present. It's pretty hard to predict 3 years into the future, but I'd be sure such a card would give good value for a long time to come!
Catweazle
Grandad
4,335 posts since Mar 2004
Reputation Points: 229
Solved Threads: 149