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ATTO Disk Benchmark vs AS SSD Benchmark: catalog facts
ATTO Disk Benchmark	AS SSD Benchmark
Free Free download from ATTO.	Free Free to use.
Windows	Windows
Free download from a storage hardware maker Measures both read and write performance	Fast, straightforward benchmark focused specifically on SSD performance No installation required to run a quick test
Little product detail on the vendor's pages Proprietary software	Windows only Narrower feature set than more full-featured storage benchmarking suites
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is 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.