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Samsung 830 vs 840 pro

Hey all,
I just heard that the 840 pro failure problems have been fixed. I immediately decided I should replace my 830 and was about to buy a 512gb 840 pro when I thought I should slow down and inquire here. Couple things. 1. I heard that the 840 uses cheaper memory than the 830. Is that true for the 840 pro also? and 2. Is the upgrade to the 840 pro worth 50 dollars? cause thats how much I would have to pay to exchange for the pro.
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  1. Best answer
    Samsung SSD 830 (256GB) uses Samsung MCX controller, with NAND 27nm Toggle-Mode 1.1 MLC.

    Samsung SSD 840 (250GB) uses Samsung MDX controller, with NAND 21nm Toggle-Mode 2.0 TLC.

    Samsung SSD 840 Pro (256GB) uses Samsung MDX controller, with NAND 21nm Toggle-Mode MLC.

    None of these techs are cheap, they are not equal, thus they performance differently, when it comes to sequential write, but if you consider sequential read, they performance about the same.

    The 840 Pro uses MLC NAND, which is a lot better in write performance than the TLC NAND used by the 840, so in part the 830 is a bit better than the 840 to respond your 1st question.

    As for your 2nd question, I would pay the extra $ 50 to get the Pro version.
  2. Thats right i know none of them are cheap, BUT TLC ram is cheaper to produce than MLC ram. http://www.flashbay.com/support/faq/slc-mlc-usb-flash-drives


    I think I will go with the pro....hopefully with the update its a working drive, because if it performs how it should it should be really good. Thnks
  3. You are very welcome! :)
  4. Samsung 840 Pro 128GB SSD listed for $139 @ Gadgetar.com
  5. Best answer selected by blacktiger826.
  6. jemm said:
    You are very welcome! :)

    thanks again, I will be doing the 840 pro for sure.
  7. SERIOUSJACK85 said:
    Samsung 840 Pro 128GB SSD listed for $139 @ Gadgetar.com

    nice..... thanks
  8. Even better Samsung 840 128GB now on sale $69 @ Gadgetar.com. :o
  9. SERIOUSJACK85 said:
    Even better Samsung 840 128GB now on sale $69 @ Gadgetar.com. :o

    is it the normal 840 or 840 pro
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