Advanced Micro Devices

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is taking another step in its fight for microprocessor market share.

The runner-up maker of microprocessors for personal computers on Tuesday is expected to launch a new version of its high-end

Athlon

chip called the

Athlon MP

. The Athlon MP is a multiprocessor chip -- or one that allows more than one processor to work at the same time in one computer or computers that are networked together -- and is aimed at the workstation and server markets. AMD is also launching an accompanying AMD-760 MP chipset, which it said works with the chip for improved performance.

This is AMD's first attempt to break into the demanding workstation and server markets that currently belong to industry giant

Intel

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. Workstations need to be able to process large amounts of data and are used by engineers, financial analysts or graphic designers, among others. Servers are used for a variety of data intensive applications and may host large databases or Web sites. Its so-called "Hammer" chips, which are due on the market in 2002, are also aimed at the server market.

AMD has begun making some headway in the corporate markets with its high-performance chips for desktops, but the largest customers for its chips have been consumers. The launch of the Athlon MP, which at 1.2 gigahertz lists for $265 and at 1 gigahertz lists for $215, comes shortly after

AMD launched the Athlon 4, a low-power version of this chip for use in mobile computers.