Editor Note: After this article was published we learned that TRIM was not working on our test system at the time the Extreme 240GB was tested. A follow up article has been published with accurate benchmarks. Please read it here.
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.
In CDM we're looking at 4K and native command queuing performance. The SanDisk Extreme delivers a good 4K read speed, right around 40MB/s. That number increases as commands are stacked. At 32 read commands the Extreme hits 212MB/s which is good, but not as fast as the Vertex 3 240GB when we tested it.
The single command 4K write speed on the Extreme is very impressive, just over 132MB/s. Once again that number increases by a large amount when the commands are piled on.