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OCCT vs Basemark GPU: catalog facts
OCCT	Basemark GPU
Freemium Free for individuals, with offerings for professional and business use.	Free Free for consumers to benchmark their own devices.
Windows, Linux	Windows, macOS, Linux, Android, iOS
Stress testing, benchmarking and monitoring in one tool Free for individual users	Same workload across desktop and mobile platforms Covers the major graphics APIs
Closed source Professional use is a separate offering	Large downloads of around 1 GB on desktop Listed system requirements reference older OS versions such as Ubuntu 18.04 and macOS Big Sur
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary
Not stated if an account is needed	Not stated if an account is needed
Not stated if it 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 October 1, 2026

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