The Blackmagic Disk Speed Test is most easily available on the Mac App Store . While a standalone DMG for only the Disk Speed Test isn't typically offered by Blackmagic, it is included in the Desktop Video package on the official Blackmagic Support page . 📥 How to Download & Install Option 1: Mac App Store (Recommended) Open the App Store on your Mac. Search for " Blackmagic Disk Speed Test " . Click Get then Install . Open the app directly from your Applications folder. Option 2: Blackmagic Website (Advanced) Go to the Blackmagic Design Support page. Select the Capture and Playback category. Find the latest Desktop Video update for Mac. Download the ZIP, open the DMG inside, and run the installer. Note: This installs drivers you may not need if you don't use Blackmagic hardware. ⚡ How to Run a Speed Test Launch the application from your Launchpad or Applications folder. Select Drive: Click the Settings (gear icon) to choose a target disk. Set Stress: Choose a file size (1GB to 5GB) to determine test intensity. Start: Click the large Start button in the center. Stop: Click Start again to end the continuous testing cycle. 💡 Pro Tip: If your startup disk shows "Read Only" errors, use the Settings gear to "Select Target Drive" and choose a folder where you have write permissions, like your Documents folder.
How to Download and Use Blackmagic Disk Speed Test on Mac If you’ve ever wondered why your Mac feels sluggish when exporting video or why a new external drive isn't performing as advertised, you need a way to measure its actual speed. Blackmagic Disk Speed Test is the industry standard for benchmarking drive performance on macOS, especially for creative professionals working with high-quality video. While many users search for a "DMG" download, the process is actually simpler and more secure through official channels. Here is everything you need to know about getting and using this essential tool. Where to Download Blackmagic Disk Speed Test For most users, the safest and easiest way to get the app is through the Mac App Store Official Mac App Store: You can find the latest version on the Mac App Store Why no DMG? Unlike some software, Blackmagic Design primarily distributes this specific utility as a free standalone app via the App Store to ensure it stays updated with the latest macOS security standards. Alternative for Older Systems: If you are running an older version of macOS (like Mavericks or High Sierra) and cannot use the App Store, the Disk Speed Test is often bundled within the Blackmagic Desktop Video software package available on the Blackmagic Design Support Page How to Run Your First Test Once installed, the app features a straightforward "speedometer" interface that is easy to understand. Blackmagic Disk Speed Test - App Store
Blackmagic Disk Speed Test Mac Download DMG: The Ultimate Guide to Benchmarking Your Storage If you are a video editor, photographer, or IT professional working on a Mac, you have likely asked yourself one crucial question: Is my SSD or external hard drive fast enough to handle my workflow? The answer lies in a free, industry-standard utility called Blackmagic Disk Speed Test . In this comprehensive guide, we will cover everything you need to know about the Blackmagic Disk Speed Test Mac download DMG process, how to use the tool effectively, interpret the results, and why this specific version (the DMG installer) remains the gold standard for macOS users. What is Blackmagic Disk Speed Test? Blackmagic Disk Speed Test is a free benchmarking utility developed by Blackmagic Design, the company behind DaVinci Resolve and professional cinema cameras. Unlike generic speed test tools, this software is tailored for video production . It measures how quickly your drive can read and write data—specifically simulating real-world video codecs like ProRes, DNxHD, and uncompressed formats. The tool is distributed exclusively as a DMG file (Disk Image) for macOS, which is why the search term blackmagic disk speed test mac download dmg is so common among Apple users. Why You Need This Tool on Your Mac Before we jump into the download steps, let’s clarify why this benchmark matters:
Prevent Dropped Frames: If your external drive is too slow, your video timeline will stutter or drop frames during playback. Check SSD Health: Over time, SSDs slow down. Regular testing helps you monitor degradation. Verify Cable/Port Speeds: A slow test result might indicate a faulty Thunderbolt cable or a USB-C port running at the wrong generation. Codec Validation: The tool tells you exactly which video formats your drive can handle (e.g., 4K ProRes 422 HQ, 8K RAW). blackmagic disk speed test mac download dmg
Step-by-Step: Blackmagic Disk Speed Test Mac Download DMG Follow these steps to safely download the official DMG installer from Blackmagic Design. Avoid third-party “cleaner” or “driver” websites—always go to the source. Step 1: Navigate to the Official Blackmagic Design Website Open Safari, Chrome, or Firefox and go to: https://www.blackmagicdesign.com/support Step 2: Find the Latest Disk Speed Test Version Blackmagic does not always feature this tool prominently on its homepage. Instead:
In the "Support Center" search bar, type Disk Speed Test . Alternatively, scroll down to the "Latest Downloads" section and look for Blackmagic Disk Speed Test . As of 2025-2026, the latest stable version is v3.4 (compatible with macOS Ventura, Sonoma, and Sequoia).
Step 3: Select macOS as Your Platform Click the macOS icon. The download will begin automatically. You will receive a file named something like: Blackmagic_Disk_Speed_Test_3.4.dmg Step 4: Open the DMG File Once downloaded, double-click the .dmg file. A small Finder window will pop up showing the application icon and a shortcut to your Applications folder. Security Note: If macOS shows a warning that the app “cannot be opened because it is from an unidentified developer,” go to System Settings > Privacy & Security and click Open Anyway . Step 5: Install the App Drag the Disk Speed Test icon into the Applications folder. Eject the DMG volume by clicking the eject button next to it in Finder. Step 6: Launch Disk Speed Test Open your Applications folder and double-click Disk Speed Test . If prompted, grant permission to access removable volumes (required for testing external drives). There is no installation wizard—the app runs instantly. How to Use Blackmagic Disk Speed Test (Properly Running the Benchmark) Now that you’ve completed the blackmagic disk speed test mac download dmg process, let’s ensure you get accurate results. Step 1: Select the Target Drive At the top-left of the window, click the gear icon and choose the drive you want to test. This could be: The Blackmagic Disk Speed Test is most easily
Your internal Mac SSD (Macintosh HD) An external USB-C SSD A RAID array An SD card inserted into a reader
Step 2: Configure the Stress Test (Optional) By default, the app tests using a 5GB file size. For modern NVMe SSDs (3000–7000 MB/s), increase the stress load to 5GB or even 10GB using the dropdown menu. This prevents caching from skewing results. Step 3: Start the Test Click the Speed Test Start button (the large circle with a play icon). The app will write then read data, displaying real-time graphs. Step 4: Read the Results After about 10–20 seconds, you will see two primary numbers:
WRITE (MB/s): How fast your drive can save data. READ (MB/s): How fast your drive can load data. Search for " Blackmagic Disk Speed Test "
Below these numbers, a grid of checkmarks or X marks will appear, showing which video formats are supported. A green checkmark means your drive can handle that codec and frame rate. A red "X" means it cannot. Interpreting Your Results: A Practical Guide Many users download the DMG, run a test, and then stare at numbers like “WRITE: 550 MB/s” without knowing what they mean. Here is a simple breakdown: | Drive Type | Expected Write Speed | Suitable For | |------------|----------------------|---------------| | 5400 RPM HDD | 30–80 MB/s | 1080p compressed video | | 7200 RPM HDD | 120–200 MB/s | 1080p ProRes 422 | | SATA SSD (internal or external) | 400–550 MB/s | 4K ProRes 422 LT | | NVMe SSD (PCIe 3.0) | 1500–3000 MB/s | 4K ProRes 422 HQ / 6K RAW | | NVMe SSD (PCIe 4.0) | 5000–7500 MB/s | 8K RAW / 12K Blackmagic RAW | | Apple Mac Studio / M3 Max Internal | 4000–7000 MB/s | Any professional codec | If you see unusually low scores:
Check your cable (Thunderbolt 3 vs USB 3.2 Gen 2) Ensure the drive is formatted as APFS or Mac OS Extended (Journaled) . ExFAT often slows down significantly. Verify no other app is reading/writing heavily to the drive.