Blackmagic Disk Speed Test is a straightforward macOS utility for measuring the sustained read and write performance of your storage. Built with video workflows in mind, it helps you quickly determine whether a drive can handle common editing codecs, resolutions, and frame rates.
Select a target disk and start the test to see real-time throughput in MB/s, along with an easy-to-read indicator of which video formats your storage can support. It’s ideal for validating external SSDs and HDDs, checking RAID arrays, testing memory cards, and diagnosing performance bottlenecks over USB-C or Thunderbolt connections.
Note: Disk Speed Test focuses on sequential performance (most relevant to video capture and playback) and is not intended to measure random I/O or latency.
Blackmagic Disk Speed Test is developed by Blackmagic Design and is used by 5 users of Software Informer. The most popular versions of this product among our users are: 1.0 and 2.2. The names of program executable files are Blackmagic Disk Speed Test.exe, DiskSpeedTest.exe.
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