# _mm256_max_pd

Determines the maximum of float64 vectors. The corresponding Intel® AVX instruction is VMAXPD.

## Syntax

extern __m256d _mm256_max_pd(__m256d m1, __m256d m2);

## Arguments

m1 | float64 vector used for the operation
m2 | float64 vector also used for the operation

## Description

Performs a SIMD compare of the packed double-precision floating-point (float64) elements in the first source vector m1 and the second source vector m2, and returns the maximum value for each pair.

## Returns

Maximum value of the compare operation.

Parent topic: Intrinsics to Determine Minimum and Maximum Values