Specifications

About SSDs
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Important Information About SSD Speeds
Some SSDs can have up to 50% lower write speed than the manufacturer’s claimed speed, so even though
the disk specifications claim a SSD is fast enough to handle video, in reality the disk is not fast enough for
real time video data recording. Hidden data compression mostly affects recording and often these disks can
still be used for real time playback.
Blackmagic Disk Speed Test measures accurately if your SSD will be able to handle uncompressed RAW
video recording and playback. Blackmagic Disk Speed Test uses data to simulate the storage of video so
you get results similar to what you will see when recording video to a disk. This will let you find models of
SSD that work well for video recording. In our testing, we have found larger newer models of SSD, and larger
capacity SSDs are generally faster. Blackmagic Disk Speed Test also tests the speed of disks connected to
interfaces including Thunderbolt, USB 3.0 and eSATA docks, which can affect disk performance. Please
check our web site at www.blackmagicdesign.com and click the support page to download the latest
version of Blackmagic Disk Speed Test.
Use Disk Speed Test to get a great real world indication of your
disk array performance.