Fusion Drive with Sata II vs. Sata III

Discussion in 'Mac mini' started by nebel, May 11, 2014.

  1. nebel macrumors newbie

    Apr 25, 2014
    Tired of waiting for a an updated Mini, I bought the current base model as I think it will be anyway sufficient for my use for several years to come. Now I'm planning to replace the RAM and add an SSD to create a fusion drive. I currently have a Verbatim 128 GB SSD (Sata II) installed to my MacBook and I could use it as part of the new setup. I'm wondering whether the old drive would be sufficient or whether the difference in the performance compared to an SSD with a Sata III interface is so high that I should buy a new drive? The SSD I own is unfortunately not one of the drives with the highest performance which also speaks for a new SSD...
  2. gnasher729 macrumors P6


    Nov 25, 2005
    The biggest benefit by far that you get from an SSD drive is that it can read hundreds of tiny files very quickly, unlike a hard drive. And you get that advantage, no matter whether SATA II or III. Given the choice between using an old, not very fast SSD drive for free, paying £50 for a new 120 GB or £90 for a new 240 GB SSD drive, the thing I would _not_ do is paying £50 for the medium size drive.
  3. Fishrrman macrumors G5


    Feb 20, 2009
    The late-2012 Mini can take full advantage of SATA III speeds.

    It's worth spending the money to get a new drive and put it in there. I don't think you'll regret doing so.

    240+/-gb SSD's are a pretty good value right now.
  4. pdafan macrumors member

    Aug 2, 2011
    I agree with gnasher729.
    If you want to buy, go for a higher capacity SATA3 SSD.
    Otherwise stay with your 128GB SATA2.
    Mac mini mid 2011 already has SATA3 interface.
  5. nebel thread starter macrumors newbie

    Apr 25, 2014
    OK, thanks a lot for your opinions! I think I'll start with the current SSD; I can always replace if with a larger drive in the future, if the capacity becomes insufficient.
  6. nebel thread starter macrumors newbie

    Apr 25, 2014
    ...and it's done. The procedure of adding the SSD required a pair of steady hands and patience, but in the end I'm happy as the computer responds a lot quicker now. Surely the performance would be better with a new SSD, but for now this suits me just fine. Thanks once again!
  7. JPamplin macrumors 6502


    Mar 12, 2009
    Nashville, TN

    I do believe the SSD acts as a buffer both for reads and writes (writes, I know). So even if your Mac came with SATA2, or even SATA3 with a SATA2 drive (I've seen it), then a SATA3 SSD would buffer all that. Huge difference.

    I've done Fusion Drives on SATA2 and SATA3 and it's a huge upgrade either way. Recommended.


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