Dual GeForce 7800 GT SLI Single Card Performance
Maximus writes "Asus is this first board partner out of the block with a single board, dual
GPU design based on NVIDIA's
GeForce 7800 GT graphics chip. The
Asus Extreme N7800 GT DUAL essentially takes a dual board SLI setup and
packs it all into a single PCI Express based card.
HotHardware has a performance preview posted that shows this card can even
compete in some cases with an GeForce 7800 GTX SLI setup, due to improved
latency characteristics with respect to inter-GPU transactions, that are
inherent to a single board design . This board is a bit pricey though for
sure so only gaming speed freaks need apply."
If you want to use Linux , don't buy ATI. ,if you want to have good cross platform support Again Nvidia , If you want a fancy 3D mark score then ATI is a good option .
Nvidia's 2d quality is excellent these days (under Linux and OS X at least , not sure about Windows ) and certainly on par with ATI, it does not really compare to Matrox cards (in my opinion) though.
Looking at recent benchmarks , if you want the best performance then you should go with Nvidia
The only things certain in war are Propaganda and Death. You can never be sure which is which though