measures storage read/write performance in MB/s and IOPS.
AmorphousDiskMark measures storage read/write performance in MB/s and IOPS.
• Sequential 1 MiB block read/write measurements with Queue Depth=1, 2, 4, 8, 16, 32, 64, 128, 256, 512, or 1024
• Random sequence 4 KiB block read/write measurements with Queue
• Depth=1, 2, 4, 8, 16, 32, 64, 128, 256, 512, or 1024
• Sequential 1 MiB block read/write measurements
• Random sequence 4 KiB block read/write measurements
• Read/write MB/s or IOPS scores in the main window
• Read/write MB/s and IOPS scores in the tooltip
• Measurement data value: random or zero
• Measurement size: 16 MiB, 32 MiB, 64 MiB, 128 MiB, 256 MiB, 512 MiB, 1 GiB, 2 GiB, 4 GiB, 8 GiB, 16 GiB, 32 GiB, or 64 GiB
• Measurement interval: 0 seconds, ..., 10 minutes
• Measurement duration limit: none, 5 seconds, ..., 1 minute.
A permission was given by the author of CrystalDiskMark to use an identical or similar user interface in this app.
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Excellent Storage Benchmark
scary_perry
This is a terrific utility - essentially the Mac version of CrystalMark which is pretty close to an IT standard for measuring SSD/Disk/Memory Card performance. It’s very simple, and gives consistent results, and data that you can compare to your drive maker’s performance claims by giving you scores that measure exactly what marketing departments cite in their SSD advertising.
Excellent
O.J.S.
quite comparable to crystal disk mark. Would be good to show the partition type on the main screen as exFAT vs APFS etc perform differently.
This is CrystalDiskMark for MacOS
wcg
Free and gives you results you can compare with Windows. Highly recommended.
Just Like CrystalDiskMarkInfo
M_R-123
Yea great simple app gives you an idea of your hard drive’s speed and the best part for free so thank you Katsura.
• Fixed a crash bug on launch trying to get the mounted storage device info.
Version 4.0.1
The developer, Katsura Shareware, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Accessibility
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