CrossCommissioner/CrystalDiskMark-Portable

This repository distributes a pre-packaged portable build of CrystalDiskMark 9.0.3, the widely used disk benchmark for SSDs, HDDs, USB drives and NVMe storage. It is aimed at technicians, reviewers and power users who need sequential and random read/write figures on a Windows machine without an installation step. The README says the executable itself is the original, unmodified portable build; the repository only repackages it for distribution FAQ.

What you actually get

You download a zip, extract it with the published password, and run the executable. The README documents a zero-install workflow: no registry changes, and the portable edition claims to write no files outside its own folder, so it can run from a flash drive Why use this portable build. The underlying tool reports sequential 1 MiB and random 4 KiB read/write results, includes queue-depth profiles such as RND4K Q32T1 for NVMe drives, supports multiple test-data patterns, and can export results as text, CSV or image Key features.

Choosing a test profile

The profile determines what the number means. SEQ1M Q8T1 targets large-file throughput, SEQ1M Q1T1 approximates everyday file copies, RND4K Q32T1 stresses NVMe and high-end SSDs, and RND4K Q1T1 is the closer match for OS boot and application launch behaviour Benchmark profiles. Comparing drives by a single headline number without matching the profile will not give a meaningful comparison.

Requirements and limits

The README's minimum is Windows 7 SP1 with 1 GHz CPU and 512 MB RAM; Windows 10/11 64-bit is recommended, and the repository description targets Windows 10/11 System requirements. It lists Administrator privileges as recommended for low-level access rather than as a hard requirement. A standard user account is the stated minimum; whether a specific drive or test needs elevation is not spelled out.

The password on the archive is meant to show the download matches what was published, not to provide secrecy — the password is printed in the README How to download and run. Anyone with the archive and the README can extract it; the check does not authenticate the publisher independently. The MIT license applies to CrystalDiskMark, credited to Crystal Dew World, and the packaging repository also states MIT License and credits. The README does not document benchmark methodology, results validation or accuracy testing for this repackaged build, so the numbers inherit whatever scope the upstream tool defines.

HotRepo's take

HotRepo recorded 105 total stars and #4 on its cpp NEW-REPOSITORY board on 2026-10-31, the only stored observation; that board is not the overall daily trending board and one snapshot cannot show a trend. The repository was created 2026-10-30 repository.