Samsung unveils 840 EVO solid-state drive family

There’s a new lineup of Samsung solid-state drives on the way. This one seems poised to supplant the budget-focused 840 Series, and it claims to deliver both better write performance and higher-capacity options.

Known simply as the Samsung 840 EVO, the new drive will arrive early next month in 250GB, 500GB, 750GB, and 1TB flavors. Samsung has based the 840 EVO on new 128Gb NAND flash dies, which it has been mass-producing since April using a "10-nanometer class" process. (That’s apparently shorthand for any process technology between 10 and 20 nm.) The 128Gb NAND dies are based on "3-bit MLC" technology, which means they behave similarly to the TLC chips inside Samsung’s current 840 Series SSDs.

The T840 EVO has a "proprietary multi-core MEX controller" and something Samsung calls TurboWrite technology, which involves an "innovative write acceleration algorithm and high performance write buffer." There’s a software "RAPID" mode that can further boost performance using main system memory, as well. We lack specifics for now, unfortunately, but our man Geoff Gasior is visiting with Samsung in Korea to learn more.

What really matters is that the 840 EVO offers much-improved write performance over the 840 Series. Samsung touts peak write speeds of 410MB/s for the 120GB drive and 520MB/s for the 250GB offering. For reference, the 120GB and 250GB 840 Series drives have peak write speeds of 130MB/s and 240MB/s, respectively. We’re looking at a two- to three-fold increase with the new generation.

Even the new series’ flagship beats the previous-gen champion. The 1TB 840 EVO is rated for peak read and write speeds of 540MB/s and 520MB/s, respectively, with peak random read and write IOPS of 98,000 and 90,000. The highest-capacity member of the 840 Series, by contrast, is a 500GB model with a 330MB/s peak write speed and 63,000 random write IOPS.

We still don’t know how much Samsung plans to charge for the 840 EVO family. However, the company’s press release specifically compares the new drives to the 840 Series. Considering both lineups use three-bit NAND flash, and both have the same amount of overprovisioning at each capacity point, it’s likely these will be direct successors to the 840 Series.

Comments closed
    • f0d
    • 6 years ago

    hopefully the 840 will come down in price so i can buy a 512gb one for super cheap

    i dont need the super fast write speeds of the 830/840pro/840evo because i will probably write windows and a few games and thats it – it will probably hardly ever get written to again so write speeds are useless for me

      • HisDivineOrder
      • 6 years ago

      Yeah, that’s the story that’s told about why we got TLC drives, but prices sure haven’t dropped much from the 830 days, so… eh. I think it’s just a way to give Samsung better profits for 830 equivalent pricing.

      And if you want 830 level performance, well go 840 Pro and pay through the nose.

      This is what happens when we don’t have OCZ out there slumming with bottom dollar drives. I wouldn’t BUY an OCZ drive, myself, but they sure were nice to have around keeping the other manufacturers honest on pricing.

    • MonicaWhite03
    • 6 years ago
    • jdaven
    • 6 years ago

    How about a 3000 MB/s Samsung enterprise SSD?

    [url<]http://www.engadget.com/2013/07/18/samsung-enterprise-ssd-NVMe-XS1715/[/url<] I'm sure you can sell your home to buy the 1.6 TB version.

      • sonofsanta
      • 6 years ago

      SEVEN HUNDRED AND FORTY THOUSAND IOPS RANDOM READ

      SEVEN HUNDRED AND FORTY THOUSAND

      I am in geek heaven.

      • Airmantharp
      • 6 years ago

      If it can be done at the enterprise level now, it can be done at the consumer level soon :).

    • pedro
    • 6 years ago

    This is evolutionary stuff guys.

    • FubbHead
    • 6 years ago

    Am I misreading, or are you quoting speeds for something they’re not offering? πŸ™‚

      • Scrotos
      • 6 years ago

      Yeah, there isn’t a 120gb evo when he listed the models. Maybe Samsung made one just for comparison but isn’t gonna sell it?

    • albundy
    • 6 years ago

    “We still don’t know how much Samsung plans to charge for the 840 EVO family.”

    My guess is that it’s gonna be more expensive than the Pro’s until there’s another over supply.

    • DarkMikaru
    • 6 years ago

    Damn, rough crowd. I agree that we all were sad to see the 830 go and for a brief period like many of you I thought about skipping the 840 all together. Reviews were indeed showing the 830 was a faster drive. Not by leaps and bounds mind you, but enough to notice. However, day to day work between the two I honestly can’t tell the diff? After purchasing a new HP G7 laptop (as my desktop, work laptop & work desktop are all Samsung 830 powered) I sucked it up and gave the 840 a shot. Glad I did. It performs well.

    I won’t touch an OCZ SSD if my life depended on it. In terms of Reliability Samsung is king, period. So I can handle a 10% speed decrease for rock solid reliability any day. My only gripe is the build quality took a nose dive from the 830s. Were the 830’s were beautiful brushed aluminum with a solid feel, the 840’s feel like plastic painted to look like brushed aluminum that might snap in half if you looked at it wrong. Any of you guys that own both drives know exactly what I’m talking about. Other than that… I’m very pleased with all my 840 drives and will continue to buy & recommend them.

      • Srsly_Bro
      • 6 years ago

      I picked up an 830 for a great price. Once I read up on the 840s, the 830 was an easy choice.

        • DarkMikaru
        • 6 years ago

        Yeah, I got lucky! Picked up a 256GB 830 on the egg for 139 free shipping which seems like ages ago. Yet in reality was only late last year. I also picked up numerous 64GB 830’s @ 49 & 59 also on the egg for family & friends builds. Ahh… the savings. πŸ™‚

      • Umbragen
      • 6 years ago

      Yeah, all the reviewers sing the praises of OCZ’s Vector, but if you look at Newegg’s user ratings they all have a huge percentage of one egg entries – 19% to 33%. People are more likely to complain than praise, but it’s still enough to stop me from buying; free game or not.

        • DarkMikaru
        • 6 years ago

        This still makes me chuckle! By far THE WORST OCZ SSD EVER!! I think a company should win a award for hitting a 70%+ failure rate!! LOL Generally if I see a product hit between 15-20% I’ll pass… 70 is just begging for trouble.

        Check it out…

        OCZ Petrol 64GB
        [url<]http://www.newegg.com/Product/Product.aspx?Item=N82E16820227779&nm_mc=EMC-IGNEFL030812&cm_mmc=EMC-IGNEFL030812-_-EMC-030812-Index-_-SSD-_-20227779-L02B[/url<] OCZ Petrol 128GB [url<]http://www.newegg.com/Product/Product.aspx?Item=N82E16820227780[/url<] Also look up the Octane. It wasn't as bad as those but still hilarious to read up on none the less. Enjoy.

      • 5150
      • 6 years ago

      I don’t think the 840’s are supposed to compare to 830’s. The 840 PRO is the more likely replacement for a 830.

        • HisDivineOrder
        • 6 years ago

        The 840 is the replacement SSD with the same price as the 830 line. The 840 Pro is the replacement SSD with the equivalent performance of the 830 line.

        Samsung realized they needn’t be the price and performance king with one drive when they could split it down the middle and get each title with two different SKU’s. Milking us with both.

    • Aliasundercover
    • 6 years ago

    TLC flash means it is crap. Next.

      • sonofsanta
      • 6 years ago

      How much data do you think the average consumer writes? TLC is plenty fine for the vast majority of people. If you read TechReport, you are not that average consumer, nor are you the majority.

      • Srsly_Bro
      • 6 years ago

      Blah Blah Blah if something doesn’t work for my purposes, it’s junk Blah Blah Blah Blahhh. Enough, dude. If it doesn’t work for your purposes, it might be just fine for someone else. I’m sure the company is deeply regretting they neglected to contact you for your very valuable input on current and future products. Just imagine if they would have listened to you. Those fools!

        • chuckula
        • 6 years ago

        U slightly annoyed there Bro?

          • Srsly_Bro
          • 6 years ago

          lol yes

        • Aliasundercover
        • 6 years ago

        No doubt Samsung is confident TLC is well suited to their purposes. After all, SSDs are sold by capacity. Well, there is also capacity. Oh, and some people look at capacity. TLC lets Samsung sell nearly 50% more capacity for the same silicon. Nice for them, they come out ahead.

        If capacity is all you care about shouldn’t you get a spinning disk with far more capacity and far less cost?

        3 bit per cell flash takes an enormous hit in all measures of performance compared to 2 bit per cell. Write speed is down. Tricks to increase write speed work on big writes but also increase write amplification. Write endurance is down an order of magnitude. Error rates soar calling for vastly increased forward error correction. All that error correction exaggerates the march toward big blocks which again increase write amplification. Still unknown are long term errors and storage life.

        If all you care about is capacity and booting Windows faster than a spinning drive TLC is made for you. You better get a big discount on $/GB because every other aspect of TLC is crap.

      • 5150
      • 6 years ago

      I see your point, thank you for persuading me from making a terrible purchase.

    • A_Pickle
    • 6 years ago

    Good. Samsung’s 840 series were crap, to be honest with you. I felt super bummed out that, by the time I’d scratched up enough to buy a decent SSD, the 830 series were nowhere to be seen. In my humble opinion, the Samsung 830 series SSD’s were by far the champions of their era, and were a far better product than the Samsung 840 series SSD’s. They were faster AND comprised of more reliable memory cells. WTF, Samsung.

      • Khali
      • 6 years ago

      I was building my new system right when Samsung was rolling out the 840 line. No 830’s to be found except the 512 GB version. Glad I got two of those instead of anything else that was available at the time.

        • A_Pickle
        • 6 years ago

        Jeez oh Pete. That’s a lot of GB of fast storage. I’m jelly.

    • HisDivineOrder
    • 6 years ago

    I would consider it likely that the prices will go up by a marginal amount. It’s the SSD Creep. Every release with worse NAND gets slightly higher prices, except when OCZ is slumming with lowball pricing.

    Since they gave that up, every SSD manufacturer has been slowly creeping up their prices while offering worse drives. Last year’s 830 was superior to the 840 (since the 840 Pro wound up being the 830 successor except much higher priced) and with all the “voodoo” they talk about (using regular memory to speed up SSD’s), it’s hard to tell if those speeds they’re claiming on the 840 EVO are real or just some elaborate caching routine that uses system memory by forcing you to install special drivers and/or Samsung Magician. Seems likely the 840 EVO is the 840 with special drivers/software. I’m sure that won’t keep them from jacking up the price.

    I remember when the 830 was just fast, with great durability, and had low prices. Them were the days. Samsung was doing great. Then one day they got a big head and started “diversifying” and here we are today.

    Higher prices for equivalent releases or similar prices for trash that doesn’t even get the price low enough to give us truly affordable 500GB+ drives.

      • A_Pickle
      • 6 years ago

      I’m heartbroken that I missed out on that. I very badly wanted an 830 series SSD, with 240 GB of storage — but I was socking away $50 per month for one. Before I had enough, they launched the 840 series. Optimistic, I read TR’s review.

      And then my heart fell into my stomach, and I had to go to the ER.

        • Srsly_Bro
        • 6 years ago

        You don’t need all of those commas, fancy pants. The capacity of the 830 series were sold in exponents of 2. I bought a 256GB 830 before the disappeared.

        • Farting Bob
        • 6 years ago

        Why didnt you carry on saving for 1 more month and get a 840 Pro?

          • A_Pickle
          • 6 years ago

          Principle. The 840 Pro wasn’t THAT much better than the 830 series, in fact I’d say they were in roughly the same league (though the Pro does, admittedly, have a pretty bomb-ass warranty). Still, I want to vote with my dollars, and I wasn’t about to reward Samsung for releasing a similar product for a HIGHER price.

    • danny e.
    • 6 years ago

    Good news. I was wondering when Samsung would get to the 1TB mark.
    I expect the movement for the Pro line will be a little slower but I didn’t expect this from Samsung till Fall.

    • Bensam123
    • 6 years ago

    Sounds like a big DDR cache on board (plus using system memory!)… leave it to Samsung. ^^

      • BoilerGamer
      • 6 years ago

      Given this is Samsung, we are probably talking about 1G of LPDDR3 as cache, 840Pro uses 512M of LPDDR2.

    • south side sammy
    • 6 years ago

    why did they use “3-bit MLC” technology which is what is NOT on the “pro” series drives.

    seems like a step backwards. and I see that ramdisc is starting to make a comeback if they’re using system ram to increase performance.

    why not bring back the pci-e ram cache system they had but disappeared years ago. It’s way faster than an SSD anyways.

    TR should do a review on ramdisc……………… loading apps and games stored on ram…………. something for you tech heads.

    I never had use for 64gb of ram but testing it as asked above could show some interesting results.

    and before you ask, there are options to save the data on the ram by writing to HD before shutdown and returning it to ram on boot up.

    • Chrispy_
    • 6 years ago

    I’m liking the new 128Gb flash dies. Sure, they’ll cost more to produce than the old 64Gb drives, but I’d expect to see 1TB SSD’s for $250 in the not-too-distant future, given that you can find 500GB drives based on 64Bb flash dies for around $300 before sales/specials at the moment.

    • ApockofFork
    • 6 years ago

    And I just received my samsung 840 in the mail!… Oh well you win some, you lose some.

      • chuckula
      • 6 years ago

      I have 2 of the 840 Pros in my new machine.. but one of them can always go into a notebook next year to make room for an affordable 1TB SSD.

      • Srsly_Bro
      • 6 years ago

      Send it back. You know you don’t want it, anyway.

    • Alexko
    • 6 years ago

    “What really matters is that the 840 EVO offers much-improved write performance over the 840 Series. Samsung touts peak write speeds of 410MB/s for the 120GB drive and 520MB/s for the 250GB offering. For reference, the 120GB and 250GB 840 Series drives have peak write speeds of 130MB/s and 240MB/s, respectively.”

    That’s not what really matters to meβ€”I’d be quite happy with 130MB/s. Don’t get me wrong, I’ll gladly take the 410MB/s, but I’m mostly concerned about price.

    They way I see it, SSDs are fast enough. If they get faster that’s great, but they mostly need to get cheaper.

      • A_Pickle
      • 6 years ago

      You’re happy with 130 MB/sec?

      I transferred files from one of my 1 TB Hitachi HDD’s to the other 1 TB Hitachi HDD and got a sustained transfer speed of about 100 MB/sec. Sorry, but 130 MB/sec just isn’t that impressive to me for an SSD — especially for the successor to an SSD that wrote MUCH faster than that. Samsung pulled a fast one on us with the 840 series.

        • nico1982
        • 6 years ago

        You are clueless if you just look at write speed. The cheap 840 – which is not the successor of the 830, the 840 Pro is – will still run circle around any HDD in both read speed and response time, which is the most noticeable aspect for the vast majority of the users.

        I can’t complain about the 120GB 840 that breathed new life into my old C2D macbook. And just for little over 70 euro. I don’t expect the laptop to survive the SSD either, TLC memory or not.

          • Srsly_Bro
          • 6 years ago

          Oh, they are clueless, don’t think anything of it. Moving on.

          • A_Pickle
          • 6 years ago

          So, you’re buying an SSD for excellent reads, and marginally-better-than-HDD writes? See, because, I figure you’d probably want to get an SSD, for the same price, with excellent reads and writes. Maybe I’m just crazy, though.

        • Alexko
        • 6 years ago

        130MB/s is still much faster than my current HDD, whose write speed I’m OK with.

        I’m more interested in SSDs for their access times and read speeds. But then again, I don’t often transfer large amounts of data from disk to disk.

        • Firestarter
        • 6 years ago

        Comparing an HDD to an SSD? Don’t kid yourself.

      • HisDivineOrder
      • 6 years ago

      I think SSD’s need to get more capacity and get cheaper. I think even the slowest modern SSD is faster than the fastest mechanical drive and I wish we could get a 500GB or TB drive for NOT $300 or more. Having one fast drive is great. It can be smallish, but now we need bigger, cheap drives that still have the silence, low power, lack of vibration, lack of moving parts, and inherently superior speeds to use as data drives.

      And they really should avoid compression tricks so they truly serve as great media drives. You’d think these companies would realize this between touting, “Hey, we gots a 1 TB drive! It’s only $600!” and “Hey, we gots a 500GB SSD! It’s ONLY $350!”

      Not good enough.

    • Deanjo
    • 6 years ago

    *sigh* more meaningless peak compressible write speed specs. Show me the sustained uncompressed speeds like Crucial does.

      • bcronce
      • 6 years ago

      Samsung does compression now? Their prior SSDs didn’t.

    • wizpig64
    • 6 years ago

    Hopefully this means some killer prices coming up on the 840 series.

    • lilbuddhaman
    • 6 years ago

    Why not give it a new model number?

      • Visigoth
      • 6 years ago

      Because it’s not needed?!? :-/

        • Srsly_Bro
        • 6 years ago

        Like that’s ever stopped anybody lol.

          • Scrotos
          • 6 years ago

          Leave nvidia out of this, you monster!!!

    • Dizik
    • 6 years ago

    I’m glad that I’ve held off this long buying an 840 Pro.

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