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 OCZ Vertex 4 exhibited slightly lower read speeds, this was apparent when testing sequential data and 512k data blocks. However, the drive continued to impress with its significantly faster writing speeds - sequential and 512k blocks writing speeds was a good 50% faster than its fastest competitors. It also managed the highest speeds when it came to 4k, 32 requests queue depth, clearly showcasing the prowess of its new Indilinx Everest 2 controller when it comes to deeply queued data operations.