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

Since there is no compression involved, incompressible sequential performance doesn't bring up any surprises. Write speed is heavily affected by the amount of NAND and its speed but this is typical to all SSDs.

Random & Sequential Read/Write Speed Performance vs. Transfer Size
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  • nedjinski - Wednesday, December 19, 2012 - link

    I wish you could somehow get Mushkin SSD's into the mix :)
  • Kristian Vättö - Thursday, December 20, 2012 - link

    I've asked Mushkin for review samples several times but for some unknown reason, they have never sent us any. And yes, I've tried emailing them again and again but I haven't gotten any replies...
  • Mumrik - Thursday, December 20, 2012 - link

    That's weirdly worrying.

    AT isn't exactly a small hardware-grabbing site.
  • ICBM - Wednesday, December 19, 2012 - link

    It was mentioned that the LAMD controller isn't in the same class as Vector/840Pro, however it seems like it only loses a couple of benchmarks. The others it is winning or just slightly behind. So is it really not up to par with OCZ and Samsung? Would the average user, heck scratch that. Would the most avid enthusiast know the difference between an 840 Pro and a Neutron GTX running in their system?
  • Beenthere - Wednesday, December 19, 2012 - link

    In actual use no one is likely to be able to tell the difference in performance between a SATA 2 drive compared to a SATA 3, let alone between the recent crop of SATA 3 SSDs.

    People should do their homework before jumping in to an SSD. If you chose to go forward at least you'll know which drives to definitely avoid and which ones are the cheapest. Don't assume because an SSD is a familair brand name that it is either reliable nor fully compatible because you may be in for quite a rude awakening. It's foolish to pay more based on some perceived benefit in benchmarks when it means nothing in actual use.
  • Denithor - Thursday, December 20, 2012 - link

    This is very true.

    I switched from a 120GB Intel 320 (SATA 2) to a 180GB Intel 330 (SATA 3) and the only difference I could see/feel was the increased capacity of the new drive. Boot times were nearly identical, apps open at the same speeds, no discernible improvement from the upgrade.
  • hammer256 - Wednesday, December 19, 2012 - link

    Those consistency results are pretty remarkable. From newegg reviews, however, it appears to have a bimodal distribution of 5's and 1's, but the sample size is pretty small. Still, I wonder how good their QC is...
  • skytrench - Thursday, December 20, 2012 - link

    Not really, the consistency tests on a 100% full and 100% fragmented drive with nonstop 4k random writes, doesn't reflect reality. You wouldn't even allow your ZFS filesystem to reach that state! Some better test should be devised.
  • nushydude - Thursday, December 20, 2012 - link

    which SSD to get strictly for OS, applications and games? i think Neutron GTX is too much because i won't be writing much data. a Samsung 840 should suffice? i want better performance than a 120GB Kingston HyperX (original one) btw.
  • nathanddrews - Thursday, December 20, 2012 - link

    Simple, use the light workload storage benchmarks and select any drive that performs better than your current SSD.

    I'll even be really nice and provide you with a link. :-)
    http://www.anandtech.com/bench/SSD/269

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