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SSD becoming affordable

Discussion in 'PC Forum' started by Jakeman, Jul 8, 2008.

  1. Jakeman

    Jakeman MSC Founder and Donator

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  2. Jakeman

    Jakeman MSC Founder and Donator

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  3. Jakeman

    Jakeman MSC Founder and Donator

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  4. Jakeman

    Jakeman MSC Founder and Donator

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    Over time there have been some user reviews trickling in which claim to confirm the aforementioned performance degradation with extended use. For example:

    http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16820167013

    Note that the 60 - 70MB writes are in contrast to a rated 170MB speed for the SLC version of the drive.

    He mentions a recent firmware update for the cheaper MLC model. While the details are a little vague, the firmware patch claims to fix or at least help the problem of long term performance. For example, here is a recent article about it:

    http://news.softpedia.com/news/Download-Intel-SATA-SSD-Firmware-Update-109327.shtml

    But given the nature of the problem it claims to fix, it will probably take some time before we get real confirmation as to the effectiveness of the patch.

    There is every reason to wait for the second generation of these SSD drives. The prices will drop, the capacities will increase, and it will give Intel a chance to convincingly address these performance problems.
     
  5. harleyb

    harleyb Peasant

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    I'm happy to pay current prices, as long as there's no problem with long term reliability (in both performance as well as data loss) and if current OSes were optimized for them.
     
  6. Jakeman

    Jakeman MSC Founder and Donator

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    Very thorough and enlightening article with benchies:

    http://www.tomshardware.com/reviews/ssd-performance-power,2279.html

    It looks at the Intel and Samsung SSDs, showing read / write performance over several consecutive tests in order to measure any degradation in performance over time. It also has tests of the MLC drive before and after the firmware update which is nice:

    before update - http://www.tomshardware.com/reviews/ssd-performance-power,2279-4.html

    after update - http://www.tomshardware.com/reviews/ssd-performance-power,2279-5.html

    The 32GB SLC drive is also in there:

    http://www.tomshardware.com/reviews/ssd-performance-power,2279-6.html

    The article also looks at how different types of workloads affect performance.
     
  7. Jakeman

    Jakeman MSC Founder and Donator

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    Intel rapes the field in IOPS:

    http://www.tomshardware.com/reviews/256gb-samsung-ssd,2265-9.html

    The last graph on the page is interesting. It shows the Intel SLC way ahead of the Intel MLC on the workstation IOPS benchmark, while the two drives are comparable on the other benchmarks. I am guessing the workstation benchmark uses lots of small random writes which would exploit the better write performance of the SLC drive.
     
  8. Jakeman

    Jakeman MSC Founder and Donator

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  9. Jakeman

    Jakeman MSC Founder and Donator

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    34nm actually. They have just been announced:

    http://arstechnica.com/hardware/new...ssds-cut-prices-by-60-percent-boost-speed.ars

    Two new revisions of existing drives with the same capacities:

    80GB 34nm MLC = $225
    160GB 34nm MLC = $440

    Those are lot prices. Retail will probably be a little higher.

    Note the current retail for the 50nm MLC drives:

    80GB 50nm MLC = ~$320
    160GB 50nm MLC = ~$650

    Basically the new revisions are cheaper and supposedly faster:

    - 25 percent reduction in read latency (who cares, read latency is already ****ing fast)
    - double the write performance (i don't know if that means bandwidth or latency, i hope it means latency because that is one notable weakness of MLC writes).

    I see no mention of new SLC drives.
     
  10. Jakeman

    Jakeman MSC Founder and Donator

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    I should have said IOPS, not latency.

    I found some numbers. The Intel page has numbers for both the 50nm and 34nm drives:

    http://www.intel.com/design/flash/nand/mainstream/index.htm

    The new drives have double the write IOPS which is tits. :eyes: The larger drive has more IOPS than the smaller drive which is interesting.

    I want to see some detailed benchies, but these new drives are looking helluva good on paper. And they are much cheaper.
     
  11. Jakeman

    Jakeman MSC Founder and Donator

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    I noticed a difference in Intel's write IOPS ratings for the SLC and MLC drives (comparing the first generation in this case):

    SLC - http://www.intel.com/design/flash/nand/extreme/index.htm

    MLC - http://www.intel.com/design/flash/nand/mainstream/index.htm

    Note that the SLC uses the > operator while the MLC says "up to" which is <=. I was confused at first when I saw both drives had the same IOPS numbers, but there is a big difference between an upper bound and a lower bound. This difference is consistent with benchmarks on the first generation drives. Just something to keep in mind.

    While the new MLC drives have higher IOPS ratings, it's still an upper bound unlike the SLC drives:

     
  12. Jakeman

    Jakeman MSC Founder and Donator

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    Production of new Intel drives halted due to firmware problem:

    http://www.tomshardware.com/news/Intel-Postville-SSD-Firmware-Newegg,8351.html

    This firmware problem relates to BIOS passwords, not performance like the problem with the first drives.

     
  13. Jakeman

    Jakeman MSC Founder and Donator

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  14. Jakeman

    Jakeman MSC Founder and Donator

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  15. Jakeman

    Jakeman MSC Founder and Donator

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  16. Jakeman

    Jakeman MSC Founder and Donator

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  17. SpocKirk

    SpocKirk Forum Moderator and Donator

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    what is the physical size of the SSDs? I suppose they will be able to fit in a laptop HDD slot, but how much empty space is there?
     
  18. Jakeman

    Jakeman MSC Founder and Donator

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    They are standard 2.5 inch drives. They will fit in laptops.
     
  19. Jakeman

    Jakeman MSC Founder and Donator

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  20. Jakeman

    Jakeman MSC Founder and Donator

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