My fastest Blackmagic disk speed test

Discussion in 'iMac' started by Jacksonc, Mar 31, 2014.

  1. Jacksonc, Mar 31, 2014
    Last edited: Mar 31, 2014

    Jacksonc macrumors 6502

    Jacksonc

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  2. Dweez macrumors 65816

    Dweez

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    #2
    Man - that's smokin'! What are you using for internal storage?
     
  3. Jacksonc thread starter macrumors 6502

    Jacksonc

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    #3
    Should be fixed now.
     
  4. Jacksonc thread starter macrumors 6502

    Jacksonc

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  5. cynics macrumors G3

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    #5
    What are you using. 10x faster then my HDD, literally. :)
     
  6. Jacksonc thread starter macrumors 6502

    Jacksonc

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    #6
    I use that partition for rendering videos in FCP. On an internal drive... Do you want to guess?
     
  7. yjchua95 macrumors 604

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    #7
    RAM disk? It's probably the only answer because the internal drive is limited to SATA3-6Gb/s (750MB/s theoretical max, but normally tops out at 520MB/s), and your late-2012 iMac can only support Thunderbolt 1, so the max theoretical is 10Gb/s (1.25GB/s).


    So the only answer is a RAM disk.
     
  8. Jacksonc thread starter macrumors 6502

    Jacksonc

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    #8
    You're right! It's a Ram disk. I just thought I would post it here so you can have some ideas. What is your fastest ever disk speed test?
     
  9. yjchua95 macrumors 604

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    #9
    For my RAM disk, I hit 3.3GB/s before.

    Meanwhile on my SSD, I hit 915MB/s and 1035MB/s for read/write respectively (1TB PCIe SSD in my 15" rMBP, strange that write is faster), 750MB/s and 720MB/s for read/write respectively on my 27" iMac (512GB PCIe SSD).

    PS I also use RAM disks myself to reduce writes to the SSD in order to prolong its life as much as possible. With 32GB of RAM on my 27", it's no sweat creating a large RAM disk :)
     

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