![]() One of the simplest drive performance tools to use.ĭoesn’t provide extensive performance information. Pros and Cons of Blackmagic Disk Speed Test PROS Blackmagic disk speed test results also test the speed of disks connected to eSATA docks and other interfaces, which can affect disk performance. In our testing, we have found larger newer models of SSD, and larger capacity SSD’s are generally faster. This will let you find models of SSD that work well for video capture. Disk Speed Test uses data to simulate the storage of video so you get results similar to what you will see when capturing video to a disk. Use the Blackmagic disk speed test to measure accurately if your SSD will be able to handle uncompressed video capture and playback. Hidden data compression mostly affects capture and often these disks can still be used for real-time playback. Some SSD’s can have up to 50% lower write speed than the manufacturer’s claimed speed, so even though the disk specifications claim an SSD is fast enough to handle video, in reality, the disk is not fast enough for real-time video data capture. Video data includes video noise and more random pixel data which does not compress much, so the true speed of the disk is seen. This data compression technique can only save data at the manufacturer’s claimed speed when storing simple files or simple data, such as blank data. Some models of SSD cannot save video data at the speed indicated by the manufacturer because the disk uses hidden data compression to reach these higher write speeds. Important note about Solid State Disk (SSD) speeds
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