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.
* Sequential reads/writes
* Random 4KB/512KB reads/writes
* Text copy
* Change dialog design
* internationalization (i18n)
Note: Crystal Disk Mark 3.0 is not available to the public yet, but the Technical Preview does allow us to test 4K performance at queue depths of 4 and 32 in addition to 1. The current release Crystal Disk Mark only shows us QD 1.
In CDM we are looking at 4K performance and 4K at depth (NCQ). You might have seen the 4K numbers of the Performance 3 in some of the forum discussions, but those talking are only looking at half of the story. The Corsair Performance 3 has around half the 4K speed of the SandForce SF-1200 drives, but it reserves so much power, kind of like cycles for a processor to clean the drive at the same time.
We would all like to have it both ways; high 4K performance and great long term performance, but if that were to happen we'd need a heat sink and a different form factor, not to mention the drive would take quite a bit more power.
The write performance at depth caught me off guard. I was expecting better scaling, but it just wasn't there. Actually, there wasn't really any scaling at depth. This leads me to believe that either the drive doesn't respond to NCQ while writing data, or this is something that might be addressed in future firmware updates.
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