AS-SSD Incompressible Sequential Performance

The AS-SSD sequential benchmark uses incompressible data for all of its transfers. The result is a pretty big reduction in sequential write speed on SandForce based controllers, while other drives continue to work at roughly the same speed as with compressible data.

Incompressible Sequential Read Performance - AS-SSD

Incompressible Sequential Write Performance - AS-SSD

As the IOmeter tests in the previous page hinted, the 335 is a good performer with incompressible data. Incompressible sequential write speed is the highest we have ever tested on a SandForce drive. Compared to the SSD 330, the performance advantage is roughly 50% and still over 10% comared tp the 520.

Random & Sequential Read/Write Speed Performance vs. Transfer Size
Comments Locked

69 Comments

View All Comments

  • MrSpadge - Tuesday, October 30, 2012 - link

    "It is always impressive to think about performance going up with subsequent NAND generations"

    Well.. it might be impressive, but nevertheless it's a false assumption (if NAND generations are defined by lithography - newer interfaces could be implemented on the same lithography just as well).
  • Kristian Vättö - Tuesday, October 30, 2012 - link

    My point was that overall performance has gone up even though the NAND is slower.
  • mmonnin03 - Tuesday, October 30, 2012 - link

    As for the comment about stocks of 25nm flash... IMFT/Micron are still making a significant amount of 25nm NAND as well as some 34nm chips.
  • CristianM - Wednesday, October 31, 2012 - link

    you wrote on average 1000 times the capacity of the disc but that does not translate in write cycles because there is the nasty write amplification which seems to be about 3 for your testcase, so there you have it. But for an average user writing 10GB per day it would take many years to wear (68) or about 7 years for writing 100G which seems unlikely for a home user
  • CristianM - Wednesday, October 31, 2012 - link

    My bad, the write amplification is taken into account, so just divide by 10 :D and the lifespan drops to 7 years for medium use and 1 year for a mad torrent user :))
  • bankster66 - Friday, November 2, 2012 - link

    Trim needs:
    series 7 chipset (Z77 Z78) - NOT Z68
    11.5+ Intel RST OROM in bios
    11.6+ Intel RST driver pak
    Preferably Win 8
    "RAID falls under the T10 specifications. These specs require the UNMAP command to be issued to TRIM the drive. No current Microsoft operating systems supports the UNMAP command so regardless of driver or OROM RAID arrays will not be Trimmed. Win8 will be the first MS operating system with an API in place to support the UNMAP command "

    There is no way in hell you can get trim functioning with your setup, all prereqs are wrong
  • Per Hansson - Saturday, November 3, 2012 - link

    I don't know what you are on to make an accusation like that.
    TRIM is supported by Windows 7
    It requires the AHCI drivers in Windows to be used, or any other driver that specifically mentions that it supports TRIM.

    What you are referencing is TRIM support with 2x harddrives in a RAID-0 array, and that has a long list of requirements, but how that is relevant to this Intel 335 single drive review is beyond me.
    http://www.anandtech.com/show/6161/intel-brings-tr...
  • Bruno2 - Tuesday, March 12, 2013 - link

    I noticed the following firmware update for the SSD Series 335. Perhaps this was the reason for the endurance test problems.

    November 2012
    3.1.2
    This release adds a firmware update for the Intel® SSD 335 Series fixing the following issue :

    - Incorrect reporting of the E9h media wear indicator value
  • Bruno2 - Tuesday, March 12, 2013 - link

    FYI, I noticed the following firmware update for the SSD Series 335.

    November 2012
    3.1.2
    This release adds a firmware update for the Intel® SSD 335 Series fixing the following issue :

    - Incorrect reporting of the E9h media wear indicator value

Log in

Don't have an account? Sign up now