Hot on the heels of launching its first 45nm quad-core server chips codenamed Shanghai, AMD has laid out its roadmap up to 2011 for desktops and notebooks, and it appears that the company will finally enter the low-cost notebook and ultraportable laptop markets sometime in the first half of next year.

As you can see from the chart above, AMD is planning a new chip dubbed Conesus for the ultraportable market, which apparently exists only in a 45nm dual-core version that includes 1MB of cache and support for DDR2 RAM. The chip will be succeeded by the 45nm “Geneva” with DDR3 support and twice the cache at 2MB in 2010.

The company has also delayed by more than a year its much-hyped Fusion laptop chip, which combines a graphics processing unit and CPU on a single chip. Originally due in 2009, the company now hopes to release such a chip similar in 2011.