Power Consumption

To quantify power consumption we're looking at total system power, which takes into account the CPU load associated with workload generation as well as the power drawn by the drive itself. The P3700 was left in its default lower power operating mode, not the higher 25W mode.

Overall the P3700 doesn't raise any power consumption flags. The overall system power consumption ends up being around 16W higher than with a single S3700, but if you normalize for performance the two end up looking quite similar. There seems to be some power savings compared to the old Intel SSD 910, and roughly comparable power consumption to the P420m.

Total System Power Consumption - Sequential Writes

Total System Power Consumption - Random Write (QD128)

CPU Utilization Final Words
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  • extide - Tuesday, June 3, 2014 - link

    Yeah, this except more correctly it is SATA vs PCIe as the interface and AHCI vs NVMe as the protocol.

    Connectors:
    M.2 --> Supports AHCI over SATA, AHCI over PCIe, and NVMe over PCIe
    SFF-8639 --> Supports AHCI over PCIe and NVMe over PCIe
    PCIe card --> AHCI over PCIe, and NVMe over PCIe

    Now the latter 2 (and even the first one if you really wanted to...) could have a PCIe based SATA controller on it which would go PCIe --> SATA/SATA RAID Controller -> SATA SSD Controller(s), (For example this is how the OCZ Revo Drive works)
    Reply
  • Galatian - Wednesday, June 4, 2014 - link

    That's not what I meant with my comment. I'm upset that besides ASRock on the Extreme 6 and 9 and ASUS on their Impact no other manufacture included a higher bandwidth M.2 connector. I guess all upcoming PCIe M.2 drives will already be bottlenecked by the lackluster M.2 speeds most mainboard manufactures are building into their products, Reply
  • hpvd - Tuesday, June 3, 2014 - link

    hmmm are you sure? no new mainboard needed? No new Bios? Should it work in all boards which could boot existing PCIe SSDs? Reply
  • hpvd - Tuesday, June 3, 2014 - link

    I would really appreciate a short test of this. How should this work when AHCI is the standard on todays Mainboards/Bios/UEFI? There is alreday some work done until the Windows-/Linux driver take over the helm
    (which is of course already available: http://www.nvmexpress.org/blog/open-fabrics-allian...
    Reply
  • TelstarTOS - Tuesday, June 3, 2014 - link

    404 Reply
  • j00d - Friday, June 6, 2014 - link

    just take off the trailing ) in the url Reply
  • Ryan Smith - Tuesday, June 3, 2014 - link

    Since a couple of you asked, I threw it in our X79 testbed.

    Windows 8.1U1 sees the drive without issue, however it is not bootable as our motherboard cannot see the drive as a bootable devices. I preface that with the fact that our X79 testbed is a consumer platform (ASRock X79 Professional) and X79 is a rather old chipset. So I can't speak for how this would behave on a brand spanking new Z97 board, or a server board for that matter.
    Reply
  • hpvd - Wednesday, June 4, 2014 - link

    many thanks for giving this a try! Should be further investigated... Reply
  • hpvd - Wednesday, June 4, 2014 - link

    PCIe booting may be a general prob with standard bios setting on these boards. I found a tiny bios setting guide how to fix this (on a similar Asrock X97 board). Would be awesome If you could try this:
    http://www.oczforum.com/forum/showthread.php?10114...
    You would be the very first in web booting from an NVMe device :-)
    Reply
  • hpvd - Wednesday, June 4, 2014 - link

    the other way around the question is:
    does
    - your board
    - with this bios version
    - with this bios settings
    - in this PCIe slot
    see other bootable PCIe SSD devices?

    if so this new Intel PCIe NVMe SSD behave somehow different
    If others couldn't be seen either - there is still hope for "normal" boot support :-)
    You just have the right board, bios settings...
    Reply

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