The Internet Streaming SIMD Extensions

The paper describes the development and definition of Intel’s new Internet Streaming SIMD Extensions introduced on the PentiumÒ III processor. The extensions are divided into three categories: SIMD-FP, New Media, and Streaming Memory instructions. The new extensions accelerate the 3D geometry pipeline by nearly 2x that of the previous-generation processor while enabling new applications, such as real-time MPEG-2 encode. The Pentium III processor implementations achieved the desired goal at a modest 10% increase in die size. The definition achieved the short-term goal while still providing the performance scalability needed for future implementations.

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