The architecture of the board is entirely new. People are NOT excited about the graphics core, it's a glorified GF2.
The board has dual channel memory banks (2 slots for CPU , 1 for peripherals) = lots of memory bandwidth; AMD hypertransport technology hooking up on-board peripherals (reduces bandwidth and latency) = no 33 MHZ PCI buses to deal with; integrated LAN and Audio (audio will rival Audigy) uses the secondary memory bank and doesn't share the CPU memory= bandwidth again; DASP which is essentially hardware pre-fetch (so it anticipates what data will be needed and gets it) = reduced latency, kind of like pre-fetch that will be featured in the Palomino desktop CPU's.
The motherboard has the potential to rival the KT266A's perfomance.
I suggest you do a search for nForce in the forums and read a bit more to understand all the technologies behind the board.
Here' are a couple of articles for your edification:
Article #1
Article #2
Article #3
There are several more out there. But these will give you an idea how powerful this motherboard might be.