Version and / or Patch Used: 3.0 Technical Preview
Developer Homepage: http://crystalmark.info
Product Homepage: http://crystalmark.info/software/CrystalDiskMark/index-e.html
Download here: http://crystaldew.info/category/software/crystaldiskmark
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 single request 4K read speed is down to every other drive on the chart. CDM uses incompressible data so that explains the loss of performance in this test. BP4 120GB scales well through the queue depths, but this is clearly an area where the performance isn't as high as other top performing drives on the market today.
The 4K single request write performance is also lower than just about everything on the chart. Looking at the bottom of the chart we see a group of drives with LSI SandForce controllers and see the SandForce brick wall that is common on most SF drives. BP4 doesn't have the same brick wall and scales well from QD1 to QD4.
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