Is flash storage = SSD?

Discussion in 'MacBook Air' started by nexus14, Oct 20, 2010.

  1. nexus14 macrumors member

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    May 11, 2010
    #1
    Apple has introduced flash storage to MBA
    http://www.apple.com/macbookair/specs.html

    My question is, what is flash storage and how is it different from SSD?

    What are the performance differences from mechanical hard drives. We know SSDs are fast but how fast is flash storage?

    Thank you!
     
  2. grapes911 Moderator emeritus

    grapes911

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    #2
    Solid-state drives (SSD) usually use NAND-based flash memory for storage. Flash and SSD are the same.
     
  3. periopdoc macrumors newbie

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    #3
    Except we now cannot drop in a bigger/ faster drive as they come to market.

    - pod
     
  4. nexus14 thread starter macrumors member

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    #4
    Would it be reasonable to say that the flash storage format in MBA is proprietary?
     
  5. grapes911 Moderator emeritus

    grapes911

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    #5
    I haven't ready anything to confirm that, but I would guess so. At least proprietary in the sense that you couldn't easily drop a new drive in to the machine (like you can with a Mac Pro, MacBook, or most other computers). The flash technology itself is not really proprietary as many manufactures make them.
     
  6. potatis macrumors 6502a

    potatis

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    #6
    It was a 1.8" drive before, so therefore not so many options to exchange it to
     
  7. mark28 macrumors 68000

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    #7
    Flash is not the same as SSD.

    I have Flash in my ipod and USB sticks which is clearly not SSD for example.

    The low end SSD are based on Flash memory. The fast SSD are on DRAM.
     
  8. grapes911 Moderator emeritus

    grapes911

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    #8
    I'm under the impression that only the highest end SSD use DRAM and the majority of SSD out there being used are NAND-based flash memory. This is because DRAM SSDs eat more power than flash SSD and thus lose their attractiveness for notebooks and such. Am I way off here?

    Also, flash and flash based SSD use the same technology to store data. I should have been more clear.
     
  9. dacapo macrumors 6502

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    Jan 25, 2010
    #9
    What about the fact that it's soldered on to the motherboard?

    Throughput times from an SSD are usually capped by eSata, no?

    I would hope that the flash "drive" being used by the MBA would be faster since it doesn't (necessarily) have to go through an eSata interface.
     
  10. nexus14 thread starter macrumors member

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    May 11, 2010
    #10

    Is this true? Non-techie person here :D
     
  11. miknos Suspended

    miknos

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    #11
    I was looking for the same answers.

    Is a SSD (with a sandforce controller) faster than the Apple memory option?
     
  12. potatis macrumors 6502a

    potatis

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    #12
    No I don't think Sata is a bottleneck because it allows at least 300mb/s (600mb/s on newer motherboards) so it wouldn't slow down SSD's.
     
  13. fyrefly macrumors 6502a

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    #13
    We're gonna have to wait till some reviewers do Disk Benchmarking on it.

    It looked like there was a Toshiba SSD Controller chip on the Prototype Photo from Engadget. So it would be on par with an Indillinx/the Latest SSDs from Apple, which are all Toshiba and decently fast (though maybe not Sandforce fast).

    Give it a day or two - someone will have benchmarks.
     

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