Compare software

DiskSpd vs ATTO Disk Benchmark: catalog facts
DiskSpd	ATTO Disk Benchmark
Free Free and open source from Microsoft.	Free Free download from ATTO.
Windows, Command line	Windows
Built and used by Microsoft's storage engineering teams Highly configurable synthetic workloads	Free download from a storage hardware maker Measures both read and write performance
Command line only, with many options to learn Windows only	Little product detail on the vendor's pages Proprietary software
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.