ATTO - Transfer Size vs Performance

ATTO provides a quick and easy test of performance over a range of block sizes, which makes it a good overview of performance. It illustrates quite clearly how performance plateaus as transfer size increases, with reads bumping up against the limits of SATA but writes being limited by the speed of the flash itself.

AS-SSD Incompressible Sequential Performance

Any drives that perform transparent compression will perform much worse on this test than the Iometer tests. The SandForce controllers that relied heavily on compression are much less popular (having been largely displaced by controllers from Silicon Motion, Marvell, and Phison), but this in still an important metric to keep in the suite. Many real-world sources of bulk data (such as encoded video) are already heavily compressed and cannot benefit from any attempts at further compression.

Incompressible Sequential Read PerformanceIncompressible Sequential Write Performance

Mixed Read/Write Performance Idle Power Consumption & TRIM Validation
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  • eek2121 - Tuesday, October 13, 2015 - link

    PCIE SSDs? Can you find me one with 500 gb storage for $169? The market isn't there yet. PCIE SSDs are in the minority and the price premium is still too high. The performance difference is minimal, especially for casual users.
  • Denithor - Tuesday, October 13, 2015 - link

    How's $173? Amazon has the Crucial MX200 500GB drive at this price point. And if you had asked yesterday, it was on sale for $140.

    http://www.amazon.com/Crucial-MX200-500GB-Internal...
  • coolhardware - Tuesday, October 13, 2015 - link

    I believe he was referring to any type of PCIe SSDs such as http://amzn.to/1Naj0E2 (Intel 400GB) or a M.2 drive, not a SATA drive as per your link (Crucial 500GB).
  • Luke212 - Tuesday, October 13, 2015 - link

    You mean in your circumstances. Most laptops dont support M.2 PCIe. So we are stuck buying M.2 Sata or 2.5" Sata.
  • SmokingCrop - Tuesday, October 13, 2015 - link

    HDD is too slow for OS/programs and PCIe is too expensive.
    SATA SSD's is the sweet spot in between.
  • usernametaken76 - Thursday, October 15, 2015 - link

    Some people have older systems and would like to freshen them without replacing the thing, you know? Not everyone can utilize PCIe storage (laptops for instance) and not everyone wants the drawbacks of spinning HDD storage. That's the nice thing about choice, dj_aris doesn't get to make the choice for everyone.
  • Denithor - Monday, October 12, 2015 - link

    And today only (10/12) the Crucial BX100 250GB drive is on sale at Amazon for $64. So this could make the whole question of best value for price moot, if you move quickly.

    :)
  • coolhardware - Tuesday, October 13, 2015 - link

    Ordered one myself! Currently Amazon's #1 selling SSD. http://amzn.to/1VPK7vk The 500GB drives are a nice price too.

    Just imagine, in a few years we should be able to get 2TB and 4TB+ for a fairly low price. That will be AWESOME.
  • nmm - Monday, October 12, 2015 - link

    I guess I can understand the compulsion to build a better SATA SSD if you're not already the market leader in SATA SSD's. It's much cheaper than plunging into uncharted territory. I do find it a little puzzling that there isn't more movement in the M.2/U.2 market. Seems like it would get tiresome constantly bumping up against the limits of the protocol for years on end.
  • Gigaplex - Monday, October 12, 2015 - link

    If these lower end SSD manufacturers targeted a faster protocol using tech that can't fully utilise SATA3, it's likely to be an uncompetitive product.

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