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fio vs AS SSD Benchmark: catalog facts
fio	AS SSD Benchmark
Free Free and open source.	Free Free to use.
Linux, Command line	Windows
Highly configurable workloads through job files Many I/O engines for different storage paths	Fast, straightforward benchmark focused specifically on SSD performance No installation required to run a quick test
Steep learning curve for new users Command-line only, no built-in graphical interface	Windows only Narrower feature set than more full-featured storage benchmarking suites
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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