Katmai (Pentium III Core)

What Does Katmai (Pentium III Core) Mean?

Katmai was the code name for Intel’s first Pentium III core microprocessor. Katmai was the first variant in Intel’s 32-bit Pentium III family of microprocessors and supplanted Pentium II microprocessors.


Techopedia Explains Katmai (Pentium III Core)

Introduced in 1999, the Pentium III was based on Intel’s P6 sixth-generation micro architecture, which was fabricated with Intel’s 0.25 micrometer P856.5 process.

Katmai’s key innovation was a new instruction set, called Katmai New Instructions, which was later renamed to Streaming single instruction multiple data (SIMD) Extension (SSE). SSE introduced 70 new instructions targeted at optimizing floating point operations as well as the controversial serial numbers unique to each manufactured CPU. SSE gradually evolved into SSE2, which was introduced with the Pentium 4 family of processors.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…