In both the USA and Japan the notebook market is almost half of all PCs shipped, so there will surely be a need for fast high-end graphics chips in this market. NVIDIA is aiming at this market with the NV41M, which has a 6800 Non-Ultra core.
This chip has at least 8 pipelines, DDRII or III with up to 256MB and a 256-bit memory interface. It is a PCI Express implementation, but there will also be an AGP version with a bridge chip.
The Inquirer has seen comparable mobile graphics cards which were two thirds the size of a normal AGP card. Because of this, and because they use alot of power, these cards only appear in desktop replacement notebooks. Most of these modules are cooled with heat pipes or active cooling.
The NV41M and notebooks based on it are planned to be available this autumn.
ATI its counter part is codenamed M1x, where x is a number more than 11 but less than 20.