Blackmagic Disk Speed Test 4+

Blackmagic Design Inc

    • 3.3 • 100 Ratings
    • Free



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

Version 3.4.2

Improve consistency across read tests

Ratings and Reviews

3.3 out of 5
100 Ratings

100 Ratings

Rjg18 ,

Crashes from App Store, Runs from Launchpad

The ‘crash on startup’ bug that others are reporting seems to be limited to launching from within the App Store screen. If you click the ‘Open’ button from the App Store window after downloading then the App crashes instantly without any warning or eror message. If you close the App Store window, open Launchpad, and run it from there, it seems to run fine.

David Edge ,

A thoroughly practical and useful tool.

It's designed to check that a given setup will cope with video editing, a demanding task. For me it's a general purpose tool for testing disks and connectors. It works with my NAS and card readers so pretty wide applicability - you can change cables and hubs and compare them too

Half a star off because the START button reads START even when its function changes to STOP. But at this price one can hardly grumble.

Wish I'd had this years ago

Jekyll59 ,

Works fine with High Sierra

Was uncertain about using this given some of other reviews suggesting problem using this with High Sierra. But I installed it on a 2016 MacBook Pro and a 2013 Mac Pro both running High Sierra and the software imnstalled and ran fine on both. Gives easy and clear results. Very helpful when running a range of drives connected to both Macs.

App Privacy

The developer, Blackmagic Design Inc, 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.

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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