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Samsung SSD 850 PRO Solid State Drive Review

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CrystalDiskMark 3.0 Tests

CrystalDiskMark 3.0 is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results chart below, the 4KB 32-Queue Depth read and write performance was measured using a 1000MB space. CrystalDiskMark requires that an active partition be set on the drive being tested, and all drives are formatted with NTFS on the Intel P67 chipset configured to use AHCI-mode. Benchmark Reviews uses CrystalDiskMark to illustrate operational IOPS performance with multiple threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load.

CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.

CrystalDiskMark 3.0 reports sequential speeds reaching 539.0 MB/s reads and 514.6 MB/s writes. 512K test results reached 430.4 MB/s read and 506.5 MB/s write performance. 4K tests produced 37.42 read and 97.80 write performance. The CrystalDiskMark results for the 256GB Samsung SSD 850 PRO surpassed all other SATA-based solid state drives, and were once again at the very top.

CDM-Benchmark-Samsung-SSD-850-PRO

Maximum 4KB IOPS performance results at queue depth 32 are reported in the chart below. These values represent the performance levels for several enthusiast-level storage solutions, and illustrates which products offer the best operational performance under load:

CrystalDiskMark-4K_Results

In the next section, we continue our testing using Iometer to measure input/output performance…


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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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