Version and / or Patch Used: 3.0 Technical Preview
Developer Homepage: http://crystalmark.info
Product Homepage: http://crystalmark.info/software/CrystalDiskMark/index-e.html
CrystalDiskMark is a disk benchmark software that allows us to benchmark 4K and 4K queue depths with accuracy.
* Sequential reads/writes
* Random 4KB/512KB reads/writes
* Text copy
* Change dialog design
* internationalization (i18n)
Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at 4 and 32.
The Transcend SSD720 delivered 4K read performance of just over 41MB/s, but the SSD320 drops down to around 32MB/s. The drive does scale well when commands are stacked eventually topping out at 173MB/s at a depth of 32.
Here we get our first look at the performance with incompressible data. This is an area where SandForce based drives lose performance and the asynchronous flash compounds the architecture losses. At 4K we scored just under 130MB/s, I was surprised to see such a high result. The drive scaled well to QD4 with 243MB/s, but we saw little improvement in the QD32 test.