You can easily detect when a device is performing subpar and, and with the spinning disk, you can see is transfer speeds deteriorates over time. I have run Blackmagic on USB 2, thumb drives, USB 3, and USB C devices to see if I’m getting my money’s worth. On an older PC the rates I see are 500 MB/S both read and write, as you would expect. I have tried this on my older mackbooks with SSD and they do scale down as the device is older. However, you can still use it on your Windows PC, as the tool can be found in Blackmagics Desktop Video Suite, which is fully PC compatible. On my 2016 PC, I am seeing speeds like 1,000+ MB/s write, and 1100+ MB/S read. This was originally developed to be a macOS application, and therefore there is no stand-alone Blackmagic Disk Speed Test app for Windows. Since the “volume” is on your Startup Disk, you will see how fast it drive is. Measure and certify your disk performance when working with high quality video. In Blackmagic select the disk image mounted. Key Details of Blackmagic Disk Speed Test. Mount the volume (if it is not already mounted). Make it big enough for Blackmagic to work with (7+ GB) and name it what you will. Create a disk image (.dmg) using the disk utility specifying file->new image->blank image. I found a workaround that will report the rates of the Startup Disk. Discover Your Computers True Speed Watch how to assess your comp. When Blackmagic tries to read the Startup Disk, you get the message that the device is not writeable, hence you cannot rate the the transfer rates of the drive. Search for Blackmagic and click the download button next to the Disk Speed Test result. Blackmagic Disk Speed Test Tool for Video Editors - How fast is your External Drive. Blackmagic has been updated to adequately report the speed of SSD devices.
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