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MMX set for January 7 release

Intel's first Pentium processors with the MMX instruction set will ship January 7, according to sources.

The delayed parts will miss Christmas but be available in PCs immediately on the day of announcement. Formerly known by the P55C code-name, the chips will run at 166MHz, 200MHz and possibly 233MHz.

MMX chips contain 57 new instructions that accelerate multimedia performance. Software vendors are currently optimising applications to take advantage of the chips.