NVMe consumer SSDs arriving

Discussion in 'Mac Pro' started by ManuelGomes, Apr 2, 2015.

  1. ManuelGomes macrumors 65816

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    #1
    Probably the nMP refresh will come with 951 Samsung SSDs but Intel just launched the 750 series (400GB and 1.2TB, maybe 800GB in the future), which is the consumer 3700 sibling, which is a NVMe drive.
    Finally, although at this time for the nMP it means squat.
    Apple would either use the spare CPU lanes for 2 of these drives and hang TB off the PCH on the available PCIe 2 lanes, or keep TB where it is and put the drive on lower speed PCIe 2.
    Or wait for SkyLake...
     
  2. ManuelGomes thread starter macrumors 65816

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    #2
    Check the performance at Anandtech, against the SM951 and the older XP941.
    Awesome for high workloads.
     
  3. DougTheImpaler macrumors 6502a

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    #3
    TechReport's review has some stuff that Anandtech doesn't do: http://techreport.com/review/28050/intel-750-series-solid-state-drive-reviewed

    They show IOMeter results over time. At first IOMeter can appear to be very fast if it's using overprovisioned flash memory to accelerate writes, but once that area is full then performance drops off. The "anomaly" that they discovered where sometimes the drive is painfully slow for half the test makes me concerned about using it for boot/applications, and it may not be great for really huge media like uncompressed video.
     
  4. Pressure macrumors 68040

    Pressure

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    #4
    Unless you are using a SLC SSD, no disk is going to sustain the continued writing of large files. The Intel 750 is only rated at 70GB/day for 5 years.
     
  5. DougTheImpaler, Apr 3, 2015
    Last edited: Apr 3, 2015

    DougTheImpaler macrumors 6502a

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    #5
    That's the warranty rating, not the limit of how much it will do. 70GB/day means a sustained write of like 850kb/sec. That's absurd. I can write the full contents of my system drive 200x faster (around 160MB/sec), and that's only because I was copying from a 7200RPM hard drive.

    BTW 70GB/day for 5 years is only a grand total of 125TB of writes. Most of the time, consumer drives will actually live way beyond that. http://techreport.com/review/27909/the-ssd-endurance-experiment-theyre-all-dead

    The Intel 335 in this study survived 3 times that. Several drives lasted for 2Petabytes, or 2000 TB. And those are cheap SATA SSDs. I'm very hopeful this Intel drive will outlast it.
     
  6. Pressure macrumors 68040

    Pressure

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    #6
    I know but they are only rated for that. Some fail before even reaching that point, som last far longer.

    Sure, quote me TechReports experiment with a sample size of 1 per drive.

    I have no doubt that most drives will last longer but they only guarantee that 70GB/day writes for 5 years.
     
  7. handheldgames macrumors 6502a

    handheldgames

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    #7
    The SM951 and the Apple/Samsung SSUBX beat intel's silicon in almost every benchmark at AnandTech. Samsung's upcoming NVMe SSD, already blessed with a part number should be showing up shortly to wipe up what the SM951 missed. Maxing out the cMP's maximum thruput of 1600 MB/s, leaving it's single slot nMP in the rear view mirror.
     
  8. crjackson2134 macrumors 68020

    crjackson2134

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    #8
    This is what I'm waiting for. I'll probably demote my 840 Pro to bootcamp duties or to one of my Linux laptops at that point. SSD tech. is moving faster than my bank account so I'll be standing pat and waiting for Apple/Samsung NVMe to arrive.
     
  9. ManuelGomes thread starter macrumors 65816

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    #9
    Is there word on when the NVMe Samsung drive will be out?
    I was hoping to see it available soon enough.
    If there's a part number already (care to share by the way?) maybe it's coming out soon.
    Just in time for the nMP refresh?!
     
  10. handheldgames macrumors 6502a

    handheldgames

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    #10
    The M.2/Ngff 256GB version has been identified as MZVPV256HDGL-00000 and should start showing up in limited availability soon. IMO, the nMP update will likely see a variant of the SM951, if not sooner as a silent component update.
     
  11. ManuelGomes thread starter macrumors 65816

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    #11
    Let's hope the Apple version of it is ready soon as well.
    If the performance of the NVMe drive is even better it will be awesome.
    The Intel 750 is great as well, but designed a bit differently, firmware optimized for different load profiles.
    Too bad there are no chipsets available yet to take advantage of these drives.
    Maybe Apple is secretly testing and validating a SkyLake version of the nMP, to be announced in June, and released by the end of the year.
    One can only hope...
     
  12. ManuelGomes thread starter macrumors 65816

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    #12
    The Samsung SM951 is already available normally it seems.
    Also, the new MacBook already has a NVMe SSD, not sure if it's Samsung or not, it shows up as Apple as the manufacturer but that's usual.
     
  13. NOTNlCE macrumors 6502a

    NOTNlCE

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    #13
    Wondering where SATA Express will fit in this new party of drives... I've got ports on my board with no products available for them...
     
  14. Keter macrumors member

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    #14
    From my understanding is the NVME is far more ideal for the high performance flash storage to come, over that of AHCI/SATA Express because the latter had been design for the a higher latency form of storage media.

    It was rather interesting to see how these new drives from Intel connect over this smaller form a of SAS and m.2

    I have been very happy with the performance of the Apple/Samsung blades in my Mac Pro.
     
  15. mugwump macrumors regular

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    #15
    Wondering if this is bootable with the latest OS X on the older Mac Pros. Would love to throw this into an open 8X PCIe slot!
     
  16. m4v3r1ck macrumors 68020

    m4v3r1ck

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    #16
    I fully agree @crjackson2134, I'll wait for the prices for NVMe drop and for now I'll be devoted to my 840 EVO's on the DUO x2...

    You can't get everything in life! :rolleyes:
     

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