No, because non-"FMA unit" (mostly SIMD FP) AVX2 instructions don't cause license-based downclocking on recent Intel CPUs. To get downclocking to L1 license (t

No, because non-"FMA unit" (mostly SIMD FP) AVX2 instructions don't cause license-based downclocking on recent Intel CPUs. To get downclocking to L1 license (the middle speed tier), you need to use either FMA unit AVX/AVX2 insructions or any AVX-512 instructions. This algo doesn't use any of this, staying in the integer domain. Here's a longer description: https://stackoverflow.com/a/56861355 https://stackoverflow.com/a/56861355 Of course this doesn't address say power or temperature based throttling which might be more likely to occur when wide SIMD is used, but it's not possible to give a precise answer there, other than many low or moderate core count setups won't see this kind of throttling outside of extreme use cases.