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There are six new processors in total, with the fastest now running at 1.2GHz. They are all manufactured to Intel's 0.13micron process and are optimised for mini- and sub-notebooks, as well tablet PCs.

"This introduction extends the benefits of the mobile Pentium III processor-M to the smallest mobile PCs," said Frank Spindler, VP and general manager of Intel's

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Mobile Platforms Group. "Small, sleek, fast, with great battery life - our best mobile technology now comes in every size system."

Architectural features that Intel is highlighting include use of SpeedStep, 512Kb of L2 cache and a Data Prefetcher. The SpeedStep technology can automatically switch between "Maximum Performance Mode" and "Battery Optimized Mode" for extending battery life, which supports power levels as low as two tenths of a watt or less.

The latest offerings, Intel claims, provide a performance gain of up to 64 per cent over the previous offerings.

It was back in July that Intel released the previously fastest 1.13GHz version of the PIII Processor-M.

Intel has also introduced two new versions of its 830 mobile chipset: the Intel 830M provides "performance-oriented" integrated graphics for 3D and video on mainstream notebooks, and the Intel 830MG provides "value-oriented" graphics capability for lower-cost systems.