NVIDIA's consumer GPU business includes the following: desktop, notebook, memory, chipset products, and licensing revenue from their patent cross-license agreement with Intel. This information is directly from their CFO commentary.
The licensing revenue from Intel is in the form of annual payments (between $200-$300 million per year, $1.58 billion total recognized over a six year term), not quarterly payments. [strike]I believe that this licensing revenue is reflected in Q4 of each fiscal year (not calendar year).[/strike]
The consumer (Geforce) GPU business is clearly very important to NVIDIA, as it provides the economies of scale to pursue higher margin professional (Quadro/Tesla/etc.) solutions. In the future, the consumer GPU business will be bolstered by the Tegra business, and the GPU designs for Tegra will serve as the building block for future discrete Geforce GPU's.