Performance vs. Transfer Size

All of our IOmeter sequential tests happen at a queue depth of 1, which is indicative of a light desktop workload. It isn't too far fetched to see much higher queue depths on the desktop. The performance of these SSDs also greatly varies based on the size of the transfer. For this next test we turn to ATTO and run a sequential write over a 2GB span of LBAs at a queue depth of 4 and varying the size of the transfers.

 

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Sequential read performance is marginally faster compared to M3 Pro and overall excellent at all transfer sizes.

Sequential write speed is also slightly better than what the M3 Pro offers, although performance between IO sizes of 4KB and 64KB could be a bit better. 

AS-SSD Incompressible Sequential Performance AnandTech Storage Bench 2011
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  • scottwilkins - Friday, August 31, 2012 - link

    @bji: while not "immature", SSD is stil much younger than Winchester drive technology.

    @sheh: I wouldn't keep data on a Winchester longer than I would on an SSD. IMHO.
  • B3an - Friday, August 31, 2012 - link

    Irrelevant. You'll get many years out of any SSD, enough for any consumer. The people who buy these sort of performance SSD's usually upgrade again within 2 or 3 years anyway. I upgrade every 18 months.
  • Neutron bomb - Sunday, September 9, 2012 - link

    Yes, flash memory loses its charge eventually, but eventually may be a very long way off. Does anyone know just how long it takes before flash memory begins to lose its charge?
  • Beenthere - Friday, August 31, 2012 - link

    Actually SSD tech is very IMMATURE TECH and this is proven weekly with the need for frequent firmware updates, compatibility and reliability issues, lost data, lost drive capacity, frequent RMAs, missing TRIM function, etc.

    Just because half-baked SSDs have been sold for a number of years doesn't mean that the tech is sorted, reliable or standardised. In fact the tech changes almost monthly and has proven to be quite unreliable/incompatible.

    Anand himself stated about a year ago that SSD tech was "immature" and that statement is still true today. He suggested back then to wait 6-12 months from the time an SSD was released to see how it pans out.

    Unfortunately the same advice is still appropriate today - to wait 6-12 months as the SSD makers are rushing half-baked crap to market for undeserved profits instead of conducting thorough validation of their products. It doesn't matter what the brand, they are all shipping half-baked SSD products in one form or another and consumers have no means to know what to expect from any given product.
  • kyuu - Friday, August 31, 2012 - link

    Yeah... what a bunch of bull. Please show me any reputable source showing that late-model SSDs have failure/return rates higher than any other electronic good. You're behind the times; SSDs have gotten cheaper, and the issues have mostly been sorted. The major issues were pretty much isolated to Sandforce drives anyway.

    No, SSDs aren't perfect, but nothing is. HDDs go bad, have issues, are DoA as well, just like any consumer electronic. Your propoganda aimed at scaring people away from SSDs is disingenuous at best.
  • mura - Friday, August 31, 2012 - link

    I have been using SSD extensively for the last two years - and (knock on wood) none of them has failed me yet. (4 x Intel X25V, 2 x Samsung 470, 2 x Samsung 830, Kingston V200+, Intel X18M, just to name a few - I don't remember the others exactly).

    They work in desktop computers, workstations and notebooks, and even in my office server. These machines FLY.

    Oh, and to mention, almost all of these were bought, because some HDD has started producing bad sectors(mostly within the warranty period, but I did not want another slow and crappy product).
  • cosminmcm - Friday, August 31, 2012 - link

    Come on guys, this is beenthere, why do you even bother?
  • waldojim42 - Sunday, September 2, 2012 - link

    As an owner of a Plextor M3 256GB drive (no S or P - this was made before then) I suffer none of the issues you commented about. I have never touched the firmware, it has been perfectly reliable, lost no data, and has yet to make me even consider an RMA. This is why people like me are willing to pay more for a quality product.

    When you talk about the immature drives, remember to differentiate a bit. The CHEAP drives are immature. Intel, Samsung, and Plextor all make top notch drives that easily rival the die hard 15K SCSI drives.
  • poccsx - Friday, August 31, 2012 - link

    A-men to that
  • dishayu - Friday, August 31, 2012 - link

    This is my first SSD for sure! Thanks for the review, although it took so much more time than expected.

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