OCZ Vertex 460 240GB Solid State Drive Review

CrystalDiskMark

CrystalDiskMark is a small HDD benchmark utility for your hard drive that enables you to rapidly measure sequential and random read/write speeds.

Here are some key features of “CrystalDiskMark”:

• Sequential reads/writes
• Random 4KB/512KB reads/writes
• Text copy
• Change dialog design
• internationalization (i18n)

Unconditioned

Conditioned

Whilst ATTO showed a good gain in read performance as the volume fills up, CrystalDiskMark gives quite a different image. Looking at the read performance, there is a gain in performance from the new to conditioned drive state, however the performance on the new drive rises up as the volume fills, whereas the conditioned performance drops instead. This drop in performance may be down to TRIM (garbage collection) taking place, although subsequent testing after extended periods of time did show similar results.

Drive Comparison

For the purpose of drive comparison I use the performance figures from both unconditioned and conditioned tests with 0% data fill.

With the 0% fill performance rising up by a reasonable margin, the Vertex 460’s performance does result in a growth up the performance rankings, however the older 450 shows stronger performance figures at this stage.