Right. I don't remember whether I said it in the talk, but that demo saturates the AGP bus, meaning that the engine can extract and write scene data at about 1.

Right. I don't remember whether I said it in the talk, but that demo saturates the AGP bus, meaning that the engine can extract and write scene data at about 1.5 to 2 GB/Sec. It's possible to put a lot more static content in each frame by uploading the vertex data to the card just once. That feature is on my to-do list.