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SIMD Explained The motive for a parallel instruction set is simple: whereas performing one operation at a time is good, doing four at once is usually better. The premise behind "single instruction, multiple data" (SIMD) is that certain applications (specifically multimedia, video, and 3D graphics) can be accelerated greatly if specific arrays of data common to these applications are executed quickly in parallel. The majority of the new instructions use this technique.
Figure 2. SIMD processing
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Features
