writing code for SIMD can get you absolutely massive performance improvements. Whether it's worth the added complexity depends on the situation. If your data is

writing code for SIMD can get you absolutely massive performance improvements. Whether it's worth the added complexity depends on the situation. If your data is already arranged in a cache friendly way (SoA), it shouldn't be incredibly difficult to use SIMD intrinsics to optimize. I'd first take a look at what the compiler is already generating for you to see if manual intervention is worth it.