Published: 2026-08-20Standard:
Cryptographic Reference Guide
SHA-256 vs SHA-512: Speed, Security, and Architecture Comparison
A detailed benchmark and architectural comparison between SHA-256 and SHA-512, explaining why SHA-512 is frequently faster on modern 64-bit processors.
Frequently Asked Questions.
Frequently Asked Questions
Clear answers to common cryptographic and implementation questions.
Is SHA-512 twice as secure as SHA-256?
Both provide security margins far beyond current or foreseeable brute-force capabilities (2^128 operations for SHA-256 vs 2^256 for SHA-512).