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To download Blackmagic Disk Speed Test from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Blackmagic Disk Speed Test

By Blackmagic Design Inc

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Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video! Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and then display the result. Disk Speed Test will continue to test writes and reads from your disk so you can evaluate both performance and readability over time.

What's New in Version 2.2.2

Improved compatibility with Mac OS X 10.10 Yosemite.


Screenshot 1

Customer Reviews

Test your fusion drive!

Great application to test you fusion drive when you messed with it’s partitions (bootcamp…). When your fusion drive is correctly partitioned, results will be very same over time (~700MBps/~1600MBps). When it’s not set up properly, results will be like crazy. Changing over time different numbers, meters jumping up and down. Thank you for this app!

Good but won’t do RamDisks

Simple app. Run it and let it run for a while and you’ll get an idea of how fast a disk is.

I did want to test a Ram Disk I created on my Mac but despite setting the Stress to 1GB it would not test a 2.5GB Ram Disk - it kept telling me the disk was almost full. Which is a shame because I really only wanted the app to test my Ram Disk.

Still I am probably the exception rather than the rule and it has been very useful.

Great App!

I have tried all my drives to test them and it provides great and encouraging results. The information provided about what you can do with the disk speed is also very helpful. My Macbook Air was too high for the read speed so that would be the only improvement, making the speedometers bigger!

Blackmagic Disk Speed Test
View in Mac App Store
  • Free
  • Category: Video
  • Updated:
  • Version: 2.2.2
  • Size: 23.0 MB
  • Language: English
  • Developer:

Compatibility: OS X 10.6.6 or later

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