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.

Incompressible Sequential Read Performance - AS-SSD

AS-SSD tends to post higher numbers than our Iometer sequential tests, and here we see Crucial break the 500MB/s barrier in read performance with the FW0009 update.

Incompressible Sequential Write Performance - AS-SSD

Write speed under AS-SSD actually fell a bit, the older firmware was 10% faster here.

Random & Sequential Read/Write Performance AnandTech Storage Bench 2011


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  • nandreetta - Wednesday, August 31, 2011 - link

    I'm tempted to pick this up while Newegg has it on sale, but I've been trying to convince myself to buy an Intel SSD instead for a while now due to what everyone says about reliability. With a 2007 Santa Rosa MBP, I'll be limited by the slow SATA interface anyway, so reliability trumps speed. It's just hard to justify spending $300 or more on an upgrade rather than saving the money for a new machine when I'm this far outside of AppleCare.

    Any thoughts, Internet?
  • FunBunny2 - Wednesday, August 31, 2011 - link

    What's most interesting is that we may have another good controller. Marvell has been making them for a while, but not as a preferred vendor for some. A rock solid controller that's not SF or Intel is a good thing. Reply
  • daidaloss - Thursday, September 1, 2011 - link

    +1 Reply
  • fhaddad78 - Wednesday, August 31, 2011 - link

    I'm still rockin my 160GB Intel X25-M SSD. It's hard to imagine the new drivers are faster than what I have now. It's the only drive in my computer and my box boots up lightning fast and apps open in an instant. Reply
  • Coup27 - Thursday, September 1, 2011 - link

    fhaddad78 I concur. I am going to be building a small ITX system next month for a friend and I couldn't decide on either 64GB M4, 470 or slightly more expensive 80GB 320. Reading reviews on the 470 and the M4 question their ability to maintain their speed over the months of use.

    I've had an X25-M 80GB in my current setup for 8 months now running the Optimizer once a week. I decided to do something I've never done to my SSD, which is to benchmark it. After 8 months of use the values were exactly what Anand's graphs showed for my SSD when it was doing the rounds on the reviews.

    Think my decsion has been made. Deffinately worth a little extra for the quality of the product.
  • daidaloss - Thursday, September 1, 2011 - link

    My G2 80GB been running for a year and a half with practically the same performance as the moment I've bought it.
    Intel definitely nailed with the G2 series.
    G2 are definitely worth all the money.
  • danwat12345 - Sunday, November 13, 2011 - link

    Yea me to. G2 80GB, still keeps up with the new stuff with random reads on SATA 2! Reply
  • iRoNeTiK - Friday, September 2, 2011 - link

    I got the same test results when I updated my m4 128GB my firmware to 0009 as well, thumbs up! Reply
  • METALMORPHASIS - Tuesday, September 6, 2011 - link

    And still not ready for prime time. Reply
  • lin41411 - Monday, September 12, 2011 - link

    256GB M4 is about $430...1GB $1.67
    128GB M4 is about $200...1GB $1.56
    64GB M4 is about $110...1GB $1.71
    the price in China...
    so,as a Chinese,I really can not understand why we are low income, but the price is high
    T T

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