A mobile version of Intel's Pentium 4 processor will begin appearing in notebooks during the first half of next year, an Intel executive said yesterday.

The Pentium 4 mobile chip, which will be made using the 0.13 micron manufacturing process, will be introduced at speeds of up to 1.5GHz and will reach speeds of 2GHz by the end of next year, said Frank Spindler, vice president and general manager of Intel's Mobile Platforms Group in a speech at the Intel Developer Forum in California.

"You will see the Pentium 4 in mainstream, two-spindle, five- to six-pound notebooks at introduction," Spindler said. "We'll be able to build these in very high volumes and we'll also be able to support the Pentium 4 at various price points at its introduction."

Currently, Intel's fastest mobile processor is the 0.13-micron mobile Pentium III, which runs at 1.13GHz. This processor, formerly known by its codename Tualatin, was launched by the company last month.

Spindler demonstrated the Pentium 4 mobile chip for the first time yesterday, showing a 2GHz version of the processor in action. In addition to the smaller circuit size, the mobile Pentium 4 will also feature an improved cache, a faster system bus and Intel's Speedstep technology, which slows the speed of the processor while the system is unplugged, increasing battery life.

Increasing battery life is Intel's current goal in the mobile-processor arena, Spindler said. To accomplish this, the vendor is trying to tweak the way a notebook uses its hard drive, DVD drive and display. Intel is also introducing its 830 chipset to the Pentium III Processor-M and attempting to decrease the amount of power used by the chipset itself and the graphics display, he said.

"We believe that with these types of techniques, we can see a 30 percent reduction in the amount of power needed to power notebooks," he said.

Intel will also be introducing low-voltage and ultra-low voltage versions of the Pentium III Processsor-M later this year, he said.