• 03/25/2021
  • Public Content


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


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