Side by side
AmorphousDiskMark vs CrystalDiskMark
Both stand on disk benchmark software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Mac
AmorphousDiskMark offers configurable sequential and random storage measurements for Macs. Its main caveat is the potential wear from repeating read/write tests.
Visit AmorphousDiskMark Free plan Windows
Choose CrystalDiskMark if you need a free Windows utility for configurable storage benchmarks and several result export formats. Keep its possible effect on SSD or USB memory life and the version-to-version result incompatibility in mind when planning measurements.
Visit CrystalDiskMarkThe facts
| AmorphousDiskMark | CrystalDiskMark | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Mac | Windows |
| Lowest paid plan | Free or on request | Microsoft Store edition: $9.99, paid once |
| Plans published | 1 | 2 |
| Maker | Not published | Not published |
| Website | github.com | crystalmark.info |
| On disk benchmark software | #4 of 29 | #8 of 29 |
AmorphousDiskMark: what it does well
- Measures sequential and random read/write performance.
- Reports results in MB/s or IOPS.
- Test sizes range from 16 MiB to 64 GiB.
- Works offline after download.
- Free and open source under MIT license.
What to know first
- Mac only; requires macOS 10.9.5 or later.
- Repeated measurements may shorten storage lifespan.
CrystalDiskMark: what it does well
- Tests sequential, random, and mixed read/write performance.
- Offers Peak, Real World, and Demo modes.
- Supports custom test profiles.
- Exports results as text, PNG, JPEG, or BMP.
- Lists SMART monitoring and temperature alerts.
What to know first
- Windows-only software.
- Benchmarking may shorten SSD or USB memory life.
- Results are not compatible between different major versions.
- The installer may bundle the E START App installer.
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