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Samsung 830 vs Samsung 840 vs Crucial m4

Discussion in 'Solid State Drives (SSDs) and Flash Storage' started by tranquility1337, Oct 1, 2012.

  1. tranquility1337

    tranquility1337 Notebook Guru

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    which is better? i see that samsung 830 is at

    Features

    Up to 520MB/s Sequential Read Speed
    Up to 400MB/s Sequential Write Speed
    80K IOPS Random Read Speed
    36K IOPS Random Write Speed


    while 840 is

    Features

    Up to 540MB/s Sequential Read Speed
    Up to 250MB/s Sequential Write Speed
    96K IOPS Random Read Speed
    62K IOPS Random Write Speed

    How come the Sequential Write Speed got lower?

    and Crucial m4 is Performance

    Sustained Sequential Read: Up to 500 MB/s (SATA 6Gb/s)
    Sustained Sequential Write: Up to 260 MB/s (SATA 6Gb/s)
    4KB Random Read: Up to 45,000 IOPS
    4KB Random Write: Up to 50,000 IOPS

    i mean like is it possible you guys can explain the meaning of each? thx
     
  2. anseio

    anseio All ways are my ways.

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    I think seq. write got lower because that's a number that only means anything when moving large files to and fro. How often does that happen in everyday usage compared to the daily ins and outs of using the OS?

    Random access and IOPS are much more important to real world usage.
     
  3. tetsussaiga

    tetsussaiga Notebook Evangelist

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    Where are you getting that data? Sequential write speeds should be around 450MB/s:

    Samsung SSD 840 Pro (256GB) Review

    The 840 is undoubtedly the fastest drive right now.
     
  4. tranquility1337

    tranquility1337 Notebook Guru

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    the 840 and 840 pro are different.
     
  5. tetsussaiga

    tetsussaiga Notebook Evangelist

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    Ah, sorry I didn't see that.
     
  6. tranquility1337

    tranquility1337 Notebook Guru

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    is samsung 830 better or the samsung 840?

    i know the pro is better but not sure about 840 and 830
     
  7. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    The 840 is still better than the 830. Thessdreview has reviews up for the 830, 840, 840 pro, and crucial m4.
     
  8. tilleroftheearth

    tilleroftheearth Wisdom listens quietly...

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    At this point in time, I would say the 830 is still the superior driver overall if battery life isn't a consideration (when the storage subsystem is pushed hard for long periods of time).

    The 840 'scores' better and the power consumption has been greatly improved at load; but it is still an unproven part now (and at least for the next half year or so).
     
  9. Encrypted11

    Encrypted11 Notebook Evangelist

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    The 840 Pro uses MLC NAND while 840 Standard uses TLC NAND which happened to be used only on things like Flash Drive NANDs, Smartphone NANDs and such with lower write endurance. If I'm correct, the rated P/E is 1000 as opposed to usual 3000, 5000. Also, they're both using a 21 or 20nm manufacturing process.. so basically for the user, more energy efficiency and such... For Samsung, cost savings for making more out of less material.

    If things goes well as expected, the standard 840 would still be reliable...
    The conditions:
    -it's Samsung MDX Controller prevents write amplification really well
    -Improved TRIM and Garbage collection

    It is said that the efficiencies and tight controls of the controller will allow the Samsung 840 standard to maximise it's NAND's life and allow it to live as long as a reliable SSD you can find on the market today.

    BTW currently, a number of Samsung 830s received some price cuts. The 128GB model and 84GB model has reached price parity with the Crucial M4. On Newegg sometimes. Amazon direct too. Imo, the 830's a better buy than the Crucial m4.
     
  10. jaug1337

    jaug1337 de_dust2

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    The 840 isn't worth it. The 840 PRO is, just keep yourself to either the 830 or M4, you can't go wrong with either of them ;)
     
  11. J.Dre

    J.Dre Notebook Prophet

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    If you want to save some money, get an 830. Otherwise, go for the 840 Pro. You'll barely notice a difference while using them.

    I was able to buy 2x 830's for $169.99 each - that's damn good. One 840 Pro is $269.99, which isn't worth it in my opinion - I'll wait until the prices drop some or some sale arises (cyber Monday?) ;)
     
  12. Cloudfire

    Cloudfire (Really odd person)

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    This man speaks the truth
     
  13. misterhobbs

    misterhobbs Notebook Evangelist

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    I've been using the 830 for a few months now and have been more than happy with its performance. If I had purchased this computer now instead of June, I would have given the 840 some consideration but still go with the 830. The 840 looks like it will give a bump in performance, but I value reliability above performance, and ATM, that means I value the 830 more. In time I imagine the 840 could be considered as reliable but that will take some time.
     
  14. Encrypted11

    Encrypted11 Notebook Evangelist

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    btw, the original post's sequential write figures only applies to the 256GB and 512GB variant.
     
  15. Encrypted11

    Encrypted11 Notebook Evangelist

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    Samsung 830 (condition new) sold by Amazon, on Amazon's website is going for:-
    128GB @$70
    256GB @$154

    temporary sale. Recently Newegg also put up the 128GB Samsung 830 on sale, @$80 for less than a day. Good luck, if you're buying one. I never really thought of buying a 2nd Samsung 830 (mine's 256GB). The price @$0.60/GB is irresistable... Gotta grab.
     
  16. davidricardo86

    davidricardo86 Notebook Deity

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    Those pricess are incredible. Maybe we'll see the 512GB drop too.

    Sent from my SPH-M580 using Tapatalk
     
  17. ZaZ

    ZaZ Super Model Super Moderator

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    That's what I'm waiting to see. I would buy on price. There's little chance you'd be able to discern a difference in the drives.
     
  18. WhatsThePoint

    WhatsThePoint Notebook Virtuoso

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    About 80% of daily disk access measured in Microsoft's diskmon are small file reads and writes with most being writes.

    The large sequential numbers seen in synthethic benchmarks account for 1% of daily disk access.

    If I were in the market to buy an SSD today I'd be looking for a drive that does equally well with compressible data as it does with incompressible data plus excellent with small file reads/writes.

    The Corsair Neutron GTX and Neutron are the drives I recommend looking into.

    Synchronous memory is also something to require. The 240GB GTX contains eight 32GB modules of Toshiba Toggle Mode 24nm NAND flash memory while the Neutron contains 16x16GB modules of Micron 25nm synchronous memory.

    The Neutron GTX surpasses the Neutron in high sequential and 512k write transfer and that is where the differences stop for the most part. Both Neutron SSDs have great read performance and both have top tier write performance when we test in random or incompressible data; data that is typically seen in video, music and photographs. The GTX result of 474MB/s, when testing in AS SSD, is untouchable and the total point score over 1000 for both in that program is rarely seen. Looking past that, thessdreview says both Corsair Neutron SSDs were in the top four ever tested in PCMark Vantage.
     
  19. Encrypted11

    Encrypted11 Notebook Evangelist

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    I believe Samsung SSD retailers are getting rid of the 830 series. Here's the sequence of event I've observed in relation to pricing and the upcoming release of the Samsung 840.

    1. Newegg put the 128GB non-kit version up for $80 and the promo last for approximately a day.
    2. Just about a day ago, Amazon put up the 128GB and 256GB for $70 and $154 respectively.
    Note: Newegg and Amazon are the only distributors of the Samsung 840 that were authorised to accept Samsung 840 pre-orders.
    3. Small numbers of retailers are also following suite with the pricing. of the 256GB drive but the best I've seen with these guys are $169, for that price, you might as well take the Samsung 830 instead of the Crucial M4.

    I'm also led to think Samsung will no longer produce the 830 SSD because it uses 27nm MLC NANDs. The Samsung 840 features shrunken NAND pieces and are a lot more cost effective to produce. Especially The 840 standard edition that uses TLC NANDs that are a lot cheaper than MLC NANDs.

    It's definitely a move forward imo.
     
  20. HTWingNut

    HTWingNut Mostly Harmless...

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    I thought TLC NAND had a lot lower write endurance and was difficult to manage because of all the voltage states (8) compared with MLC (4).
     

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