Late last year when I reviewed OCZ’s Agility 4 SSD, their Vertex series was still the highest performing model they offered. The Vertex offered both speed and IOPS that managed to just slightly outdo the Agility series. In what feels like a short time since that review, OCZ’s SSD lineup has re-worked considerably; putting the Vertex as their middle end drive, dropping out the Agility 4 all together, and introducing a new Vector line as the king of the hill high performer. The 25nm flash chips in the Vertex 3 were upgraded to 20nm flash and the Vertex 3 was re-launched as the Vertex 3.20 to offer performance not far off from the higher end Vertex 4, just at a more reasonable price. I have a Vertex 3.20 on the test bed today, so let’s see just what kind of performance you can expect from this now mid-range SSD offering.