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.
In CDM we're looking at 4K and native command queuing performance. The SanDisk Extreme SSD 480GB delivers 36MB/s when reading 4K data. That jumps up to 72MB/s with QD4 and to 226MB/s at QD32.
The 4K writes suffer from the increased capacity size with the SandForce controller. Here we see just 20MB/s at 4K and that scales to just 38MB/s at QD4. It appears the SF-2281 has lost some steam when scaled to 512GB.
Newer controllers like the new LAMD and Marvell scale really well in products like the Corsair Neutron and OCZ Vertex 4.