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Samsung SSD 850 PRO Solid State Drive Review

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ATTO Disk Benchmark

The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.46 version of the program that allow for test lengths up to 2GB, but all of our benchmarks are conducted with 256MB total length. ATTO Disk Benchmark requires that an active partition be set on the drive being tested. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.

ATTO-Disk-Benchmark-Samsung-SSD-850-PRO

ATTO Disk Benchmark: Queue Depth 4 (Default)

Our bandwidth speed tests begin with the Samsung SSD 850 PRO solid state drive attached to the Intel P67-Express SATA 6Gb/s controller operating in AHCI mode. Using the ATTO Disk Benchmark tool, the test drive performs basic file transfers ranging from 0.5 KB to 8192 KB.

The 256GB model provided to Benchmark Reviews for testing produced 566 MBps maximum read speeds that plateau from around 256-8192 KB file chunks, and 537 MBps peak write bandwidth that plateaus from 128-8192 KB. These results outperform Samsung’s specifications of 550/520 MBps for the 256GB Samsung SSD 850 PRO model, and secure a spot at the very top of our test results:

ATTO-Disk-Benchmark_Results

In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool…


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14 comments

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  1. Matt M.

    If you can find your way past the numerous prompts to get to SSD support you “might” be able find the right person to answer your question.
    Don’t bother buying an SSD if you are using a NVIDIA controller. Think about getting a separate controller such as a SIIG as a partial work around the compatibility and speed issue.

    1. Olin Coles

      NVIDIA chipsets are decent, but they just aren’t as competitive as Intel or AMD boards. All of our testing is done on Intel chipsets, and I’ve had good experience with AMD motherboards, but I wouldn’t suggest NVIDIA-based motherboards for much anymore. Sorry!

  2. John P. Myers

    Samsung has updated their MSRP listings:

    128GB – $129.99 USD ($1.02/GB)
    256GB – $199.99 USD ($0.78/GB)
    512GB – $399.99 USD ($0.78/GB)
    1TB – $699.99 USD ($0.68/GB)

    1. Olin Coles

      The prices we published were those sent to us last night. If they’ve changed in the few hours since then, it’s only on paper. The only prices that matter are those at places like Amazon and Newegg.

    2. Olin Coles

      It turns out the prices we published were exactly correct, and match those found at Newegg and Amazon: http://amzn.to/1lCj1je

  3. joey

    Enable RAPID and nearly double those performance scores.

    1. Olin Coles

      RAPID would add system-supplemented performance to the benchmark, and would not be appropriate for a SSD review that compares apples to apples.

      1. Hank Tolman

        RAPID Mode actually doesn’t use the SATA channel to improve performance. It uses up to 1GB of RAM to cache data. RAPID mode analyzes all storage related activity by inserting itself as a filter driver in the Windows storage stack. It provides RAM caching based on a number of factors, like access frequency, file types, system status, and RAM availability. It also caches the ‘hot data’ across sessions and reboots.

        I consistently get 900+ MB/s using RAPID mode, but it doesn’t represent real SATA performance since it really just intelligent RAM caching.

        Read more at http://benchmarkreviews.com/15347/samsung-840-pro-solid-state-drive-review/

  4. Chris

    It’s fast, but the question is, is it worth paying almost 2 times as much in terms of capacity:cost as much as the MX100?

    – The MX 100 offers power loss protection
    – There is limited end to end data protection too in the MX100

    Against this, there’s the SSD 850 Pro, which is very fast, and has 40 nm NAND (which lasts longer).

  5. Caring1

    I’m still trying to figure out the difference from the 840 Pro.
    Didn’t that also come with Magician software and Rapid Mode?
    The Read/ Write figures look the same, so does the IOPS.

    1. Olin Coles

      Read the review. This is explained in the first two paragraphs, and also at the end of page two. Hint: 32-layer 3D V-NAND Flash, 200% write endurance in Total Bytes Written (TBW), and active write power has been reduced by up to 40% due to Samsung 3D V-NAND technology.

      1. Caring1

        Yep, I read the review before my previous post thank you.
        Strangely the article stated this > “Benchmark Reviews tests the 256GB Samsung SSD 850 PRO against the fastest solid state drives available.”
        Yet omitted to include the 840 Pro. Funny that considering what I already pointed out, the figures look the same!

  6. Stormprobe

    This review says it has a 5-year warranty, but it actually has a 10-year.

    1. Olin Coles

      That detail was published exactly how Samsung supplied it, so if they’ve increased the warranty it was done so after the product launch. Myself and others would like you to reference your source for this information.

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