Final Words

I was extremely excited about Crucial's M500 because it was the first reasonably priced ~1TB SSD. Even though its performance wasn't class leading, it was honestly good enough to make the recommendation a no-brainer. The inclusion of features like eDrive support were just the icing on the cake. With the EVO, Samsung puts forth a formidable competitor to the M500. It's faster, uses less power at idle and carries lower MSRPs for most of the capacity range. Microsoft's eDrive standard isn't supported at launch, but Samsung expects to change that via a firmware update this September.

Endurance isn't a concern with TLC for client workloads, although I wouldn't recommend deploying the EVO in a write heavy database server or anything like that.

The additional features that Samsung threw in the pot this round really show some innovative thinking. TurboWrite does a good job of blurring the lines between MLC and TLC performance, while Samsung's RAPID DRAM cache offers adventurous users a way of getting a taste of high-end PCIe SSD performance out of an affordable TLC SATA drive.

The 1TB version is exciting because it offers a competitive price with the 960GB M500 but with better performance. It's also good to have an alternative there as the 960GB M500 has been supply constrained at times. At first I didn't believe that Samsung's TLC strategy could hold weight against the Intel/Micron approach of aggressively pursuing smaller process nodes with MLC NAND, but the EVO does a lot to change my opinion. I'd have no issues with one of these drives in my system even as primary storage. The performance story is really good (particularly with the larger capacities), performance consistency out of the box is ok (and gets better if you can leave more free space on the drive) and you've got Samsung's firmware expertise supporting you along the way as well.

To say that I really like the EVO is an understatement. If Samsung can keep quantities of the 840 EVO flowing, and keep prices at or below its MSRP, it'll be a real winner and probably my pick for best mainstream SSD.

Power Consumption


View All Comments

  • verjic - Thursday, February 13, 2014 - link

    I have a question. In some of the tests I found of real life use shows that Kingston V300 and Samsung a practically the same speed and even at copy 2 GB of 26000 files is slowly on samsung with about 30 %!!! Also installing a program like photoshop, takes longer on Samsung than Kingston, difference is not so big but is arou 10-15 %. Why is that? From all the test for kingston and Samsung, everyone say that Samsung is better but I don't see how? If anyone can explain to me, please Reply
  • verjic - Thursday, February 13, 2014 - link

    I'm talking about 120 Gb version Reply
  • verjic - Thursday, February 13, 2014 - link

    Also what is Write/Read IOMeter Bootup and Write/Read IOMeter IOMix - what means their speed? Thank You Reply
  • AhDah - Thursday, May 15, 2014 - link

    The TRIM validation graph shows a tremendous performance drop after a few gigs of writes, even after TRIM pass, the write speed is only 150MBps.
    Does this mean once the drive is 75%-85% filled up, the write speed will always be slow?

    I'm tempted to get Crucial M550 because of this down fall.
  • njwhite2 - Wednesday, October 15, 2014 - link

    Kudos to Anand Lal Shimpi! This is one of the finest reviews I have ever read! No jargon. No unexplained acronyms. Quantitative testing of compared items instead of reviewer bias. Explanation of why the measured criteria are imortant to the end user! Just fabulous! I read dozens of reviews each week, so I'm surprised I had not stumbled upon Anandtech before. I'm (for sure) going to check out their smartphone reviews. Most of those on other sites are written by Apple fans or Android fans and really don't tell the potential purchaser what they need to know to make the best choice for them. Reply
  • IT_Architect - Thursday, October 22, 2015 - link

    I would be interested in how reliable they are. The reason I ask is one time, when the time the Intel SLC technology was just under two years old, and there was no MLC or TLC, I needed speed to load a database from scratch 6 times an hour during incredible traffic times. I was getting requests by users at the rate of 66 times a second per server, which each required many reads of the database per request. I couldn't swap databases without breaking sessions, and mirror and unmirror did not work well. I would have to pay a ton to duplicate a redundant array in SSDs. Then I asked the data center how many of these drives they had out there. They (SoftLayer) queried and came back with 700+. Then I asked them how many they've had go bad. They queried their records and it was none, not so much as a DOA. I reasoned from that I would be just as likely to have a chassis or disk controller go bad. None of them have any moving parts, and the drives are low power. Those were enterprise drives of course because that's all there was at that time.

    In 2011 I bought a Dell M6600. Dell was shipping them with the Micron SSD. I was concerned about the lifespan and I do a lot of reading and writing with it and work constantly with virtual machines while prototyping, and VM files are huge. It calculated out to 4 years. While researching, I came across that situation where Dell had "cold feet" about OEMing them due to lifespan. Micron/Intel demonstrated to them 10x the rated lifespan, which convinced Dell. There was plenty of other trouble with consumer-level SSDs at the time, which gave the technology a bad name. The Micron/Intel was one of the very few solid citizens at the time. I went with it, although I didn't buy my M6600 with it because Dell had such a premium on them. I had two problems with the drive, which by the way is still in service today. The first was the drive just stopped doing anything one day. I called Micron and it turned out to be a bug in the firmware. If I had two drives arrayed, it would have stopped both at the same time. I upgraded the firmware and never had that problem again. The next time I was troubleshooting the laptop and putting the battery in and out and the computer would no longer boot. I again called Micron. It was by design. They said disconnect the power, pull the battery, and wait one hour. I did, and it has worked perfectly since. If I had an array, it would have stopped both at the same time.

    Today, the market is much more mature and the technology no longer has a bad name. A redundant array is no substitute for a backup anyway. A redundant array brings business continuity and speed. Are we just as likely or more so to have a motherboard go out? We don't have redundant motherboards unless without having another entire computer. Unlike a power supplies and CPUs, SSDs are low-current devices. I'm considering the possibility that we may be at the point, even for consumer-level drives, where redundant arrays for SSDs are just plain silly.

Log in

Don't have an account? Sign up now