The processors are the sixth and seventh additions to AMD's Mobile Athlon XP line, which was first unveiled in April, said Linda Kohout, mobile brand manager for AMD. The 1900+ runs at 1.6GHz, while the 2000+ runs at 1.67GHz.
AMD has designed the 1900+ and 2000+ for full-size notebooks, rather than some of the smaller and lighter notebooks used by frequent business travellers or other mobile workers, Kohout said. They each consume 45 watts, and a 35 watt version of the 1900+ is available, she added.
Power management is used to sense how much power a given application or task requires, and adjust the amount of power flowing through the chip several times a second, Kohout said. Mobile processors from rival Intel use a similar technology.
AMD is scheduled to release chips based on its "Hammer" 64-bit technology in the first quarter of next year, and mobile Hammer chips will follow in the middle of 2003, she said. The company will stick with the Mobile Athlon XP line until customers stop purchasing the chips in significant volumes, she said.
The 2000+ chip costs $345 (£222), while the 1900+ costs $239 (£154), for quantities of a thousand. The chips are available immediately in the Compaq Presario 900 from Hewlett-Packard and the Amilo A 6600/7600 7600 series notebooks from Fujitsu Siemens Computers. While the initial notebooks featuring the chips are targeted at consumers, it is likely that business-focused laptops will soon follow from vendors, Kohout said.