• 03/25/2021
  • Public Content
Contents

Using CPU SIMD

Using CPU SIMD instructions, either through the Intel® SPMD Program Compiler (Intel® ISPC) or C++ intrinsics, can provide a significant power and performance boost. These improvements can be even bigger by using the latest instruction set.
However, on processorsprior , using AVX2 and particularly AVX512 SIMD instruction requires a voltage increase in order to power the SIMD architecture block. In order to avoid power increase, Intel Core processors will run at a lower frequency, which can decrease performance for a mostly scalar workload with a few SIMD instructions. For this reason, sporadic AVX512 SIMD usage should be avoided on these older processors.

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.