CrystalDiskMark is a synthetic benchmark that tests both sequential and random small and mid-sized file transfers. It provides a quick look at best and worst case scenarios with regard to SSD performance, best case being larger sequential transfers and worse case being small, random transfers.
The OCZ Octane drive's performance is all over the map in CrystanDiskMark. This series of tests uses incompressible data, which exposes a weakness of the SandForce based drives. As such, in the sequential read tests, the OCZ Octane is able to outpace the SandForce-based drives in terms of write throughput. With small block sizes, however, the Octane trails significantly. And matters worsened once the queue depth is increased to 32.