CrystalDiskMark is an easy-to-run and quick utility to use to gauge a drive’s performance. It measures sequential read and write performance and random read and write speeds of random 4KB, 4KB (queue depth 32) and 512KB data.
On CrystalDiskMark, the Plextor M5M was comfortably quicker than the Intel SSD 520 Series mSATA. Its performance was also comparable to Plextor’s flagship M5 Pro drive and also high-end drives such as the Intel SSD 520 Series and Transcend SSD720. Its performance on the intensive 4k, 32 queue depth workload was especially impressive.