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What is streaming SIMD extensions 2 (SSE2)?

April 26, 2017extensions SIMD sse2 streaming

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What is streaming SIMD extensions 2 (SSE2)?

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The microarchitecture includes the new extensions to SIMD capabilities that MMX™ technology and SSE technology delivered by adding 144 new instructions. These instructions include 128-bit SIMD integer arithmetic and 128-bit SIMD double-precision floating-point operations. These new instructions reduce the overall number of instructions required to execute a particular program task and as a result can contribute to an overall performance increase. They accelerate a broad range of applications, including video, speech, and image, photo processing, encryption, financial, engineering and scientific applications.