Crucial MX100 Solid State Drive Review


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Crucial MX100 SSD Conclusion

IMPORTANT: Although the rating and final score mentioned in this conclusion are made to be as objective as possible, please be advised that every author perceives these factors differently at various points in time. While we each do our best to ensure that all aspects of the product are considered, there are often times unforeseen market conditions and manufacturer changes which occur after publication that could render our rating obsolete. Please do not base any purchase solely on our conclusion, as it represents our product rating specifically for the product tested which may differ from future versions. Benchmark Reviews begins our conclusion with a short summary for each of the areas that we rate.

Our first rating is performance, which compares how effective the Crucial MX100 SSD performs in benchmark operations against competing SATA-based solid state drive storage solutions. For reference, Micron specifications suggest 550 MB/s maximum reads and 500 MB/s write speeds from the 256/512GB Crucial MX100 SSD. In our storage benchmark tests this solid state drive performed up to and beyond this speed, producing results that compared with fastest SATA-based products previously tested and often matching those of Crucial’s M550 SSD. ATTO Disk Benchmark tests proved the 512GB Crucial MX100 SSD was good for delivering 555/514 MBps peak read/writes speeds. Linear testing with AIDA64 Disk Benchmark produced 500/462 MB/s, finishing near the very top of all results. Sequential read/write speed tests with AS-SSD Benchmark produced 503/471 MB/s.

Crucial did not reveal to us any advertised IOPS performance rate, however the Marvell 88SS9189 controller used in both the MX100 and M550 has previously been stated to deliver up to 95,000 random 4KB read IOPS and 85,000 random 4KB write IOPS. Using Iometer operational performance tests configured to a queue depth of 32 outstanding I/O’s per target across 100% of the drive, our benchmarks produced 68718 combined IOPS performance – not quite the highest SATA-based test results we’ve obtained but still close to the top performers. Looking at 4K 32QD test results using AS-SSD and CrystalDiskMark, the 512GB Crucial MX100 SSD performed in the top three for all SATA-based drives we’ve ever tested.


Solid State Drives are low-visibility products: you see them just long enough to install and then they’re forgotten. Like their Hard Disk Drive counterparts, Solid State Drives are meant to place function before fashion. Anything above and beyond a simple metal shell is already more than what’s expected in terms of the appearance. Micron Technology has created a sleek 7mm profile with appealing textured aluminum finish on the Crucial MX100-series SSDs. As solid state storage controllers become faster and more advanced, heat dissipation through the enclosure walls may demand that chassis designs become more beneficial than they previously needed to be. For now, the adaptive thermal monitoring system on the MX100 suits it well in managing heat in ultrathin and embedded designs.

Construction is probably the strongest feature credited to the entire SSD product segment, and Crucial products have never offered any exception otherwise. Solid State Drives are by nature immune to most abuses, but add a hard metal shell and the chance for failure is reduced to internal component defects. If there are any problems with a Crucial MX100 SSD during the limited 3-year warranty period, end-users can receive support from the Crucial SSD support forum. There’s also a toll-free telephone number for support or customer service questions available at 800-336-8915.

As of June 2014, the Crucial MX100 SSD series launches in the following capacities and retail prices:

  • 128GB CT128MX100SSD1 – $79.99
  • 256GB CT256MX100SSD1 – $109.99
  • 512GB CT512MX100SSD1 – $224.99

If performance is all you look for from a solid state drive, then you’ll certainly find plenty of it in the Crucial MX100 series. Unfortunately, keeping a narrow focus on specification ratings will cause you to miss the bigger picture. Sure, the Crucial MX100 uses native write acceleration instead of compression and is among the fastest SSDs, but it also delivers the industry’s least expensive price per gigabyte among solid-state storage devices. Micron has forcefully pushed Crucial SSDs into the limelight by offering ultra-fast SSDs for nearly $0.43/GB, bringing their mainstream 512GB Crucial MX100 down to budget-level pricing.

Competitively earning recognition for solid performance and value, the Crucial MX100 continues to impress with hardware features that set the series apart. Small 16nm NAND Flash component free up PCB real-estate and enable higher-density 128MB ICs to fit, reducing manufacturing material costs and thereby reducing product prices. An advanced 256-bit hardware-based AES encryption engine secures data, while ‘Hold-Up’ capacitors ensure that data’s integrity in the event of power loss. An adaptive thermal monitoring system with on-board thermistor and microcontroller is certainly a useful feature for ultrathin and embedded designs, but the device sleep (DEVSLP) function that draws less than 3-milliwatts of power while in sleep mode is a huge improvement to power conservation over previous-generation SSDs. Collectively these items add to the already noteworthy performance, and earn the Crucial MX100 SSD our Golden Tachometer Award for excellence.

Pros:Benchmark Reviews Golden Tachometer Award Logo (Small)

+ Outstanding 555/514 MBps read/write speed with ATTO
+ Native write acceleration – no compression used
+ Marvell 88SS9189 supports TRIM, NCQ, and Microsoft eDrive
+ TCG Opal 2.0 security with 256-bit AES hardware encryption
+ 3-Year Micron Technology product warranty support
+ Offered in 128/256/512GB storage capacities
+ Lightweight compact storage solution
+ Resistant to extreme shock impact
+ Low power consumption may extend battery life
+ Device sleep (DEVSLP) function extends battery life


– Some manufacturers offer five-year warranty


  • Performance: 9.25
  • Appearance: 9.00
  • Construction: 9.50
  • Functionality: 9.50
  • Value: 8.75

Final Score: 9.2 out of 10.

Excellence Achievement: Benchmark Reviews Golden Tachometer Award.

COMMENT QUESTION: Which brand of SSD do you trust most?



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  1. Russell Ehrgood


    I was reading the review for the Crucial MX-100 512GB and noticed that the Crucial MX100 SSD Conclusion was tagged wrong in the drop down box, it was tagged as 10. Crucial M550 SD Conclusion. I would just like to bring it to your attention. Thanks.

    1. Olin Coles

      Thank you, I got it fixed. Glad this article is still proving useful for people.

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