Sequential Read Performance

Our sequential tests are conducted in the same manner as our random IO tests. Each queue depth is tested for three minutes without any idle time in between the tests and the IOs are 4K aligned similar to what you would experience in a typical desktop OS.

Iometer - 128KB Sequential Read

In sequential read performance the SM951 keeps its lead. While the SSD 750 reaches up to 2.75GB/s at high queue depths, the scaling at small queue depths is very poor. I think this is an area where Intel should have put in a little more effort because it would translate to better performance in more typical workloads. 

Intel SSD 750 1.2TB (PCIe 3.0 x4 - NVMe)

 

Sequential Write Performance

Sequential write testing differs from random testing in the sense that the LBA span is not limited. That's because sequential IOs don't fragment the drive, so the performance will be at its peak regardless. 

Iometer - 128KB Sequential Write

The SSD 750 is faster in sequential writes than the SM951, but the difference isn't all that big when you take into account that the SSD 750 has more than twice the amount of NAND. The SM951 did have some throttling issues as you can see in the graph below and I bet that with a heatsink and proper cooling the two would be quite identical because at queue depth of 1 the SSD 750 is only marginally faster. It's again a bit disappointing that the SSD 750 isn't that well optimized for sequential IO because there's prcatically no scaling at all and the drive maxes out at ~1350MB/s. 

Intel SSD 750 1.2TB (PCIe 3.0 x4 - NVMe)
Random Performance Mixed Read/Write Performance
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  • oranos - Friday, April 3, 2015 - link

    Insane performance, insane value. What else to say? Intel never loses a step and surprises at every turn.
  • Peichen - Friday, April 3, 2015 - link

    Sounds like there is going to be big form factor change coming to desktop computer in the next few years. Complete removal of 5.25 and 3.5" drives, M.2 and 2.5" drives taking over, CPU limted to <77W and video card to <250W.

    I should hold off replacing my still very good case until I am building a new computer in 3~4 years.
  • cjones13 - Friday, April 3, 2015 - link

    how would this drive compare with a 4 drive (samsung 850 pro 512), two card Sonnet tempo ssd pro plus arrangement? this set up is about $600 more, but 800GB larger and overall ~same $/GB @.82
  • Freakie - Friday, April 3, 2015 - link

    Maybe I'm just blind, but I don't see this 750 in Bench? Did someone forget to add it to Bench or is there a reason why it's not in there?
  • boe - Saturday, April 4, 2015 - link

    Those 10TB and 32TB SSDs can't come soon enough. I just hope they come down to an affordable price very soon as standard SSDs are still way to expensive per TB for any real storage needs.
  • gattberserk - Saturday, April 4, 2015 - link

    Can I ask why is the boot time so slow? For a drive this expensive this is not something that is tolerable.

    Is it possible to do a boot up timing with the fast boost function enabled? I wanna see how fast will it be as compared with other SATA drives using the same fast boot function.

    The boot up time will be the last factor to decide if I wanna pull trigger on this one.
  • Laststop311 - Saturday, April 4, 2015 - link

    This drive is a beast and just raised the cost of my skylake-e build another 1000 dollars. Maybe an even better 2nd generation version will be out by then. Upgrading my gulftown to 8 core skylake-e flagship. 4.3ghz i7-980x will have lasted me 7 years by the time skylake-e comes out which is a pretty darn good service life. Convert the ole gulftown into a seedbox/personal cloud nas/htpc/living room gaming console. Kill all the oc's and undervolt cpu for the lowest voltage stable at stock and turn all the noctua fans down with ULN adapters into silence mode. It will be rough re buying a buncha parts I wouldn't of had to if I didn't keep the PC together but it's too good of a PC still to dismantle for parts. Will be nice having a beastly backup pc.

    My skylake-e build has really ballooned in price but this next upgrade should last a full decade with a couple gpu upgrades using the flagship skylake-e 8 core i7 + 1.2TB intel 750 boot drive + nvidia/amd flagship 16nm FF+ GPU. Basically like 3000 dollars just in 3 parts :(. Thats ok tho it brings too many features to the table pci-e 4.0 DMI 3.0 USB 3.1 built into chipset natively 10gbit ethernet natively up to 3x ultra m2 slots and the SFF connector used in this drive possibly thunderbolt 2 built in natively of course quad channel ddr4. Hopefully better overclocking with the heat producing FIVR removed guessing 4.7-5ghz will be possible on good water cooling to the 8 core.

    Sorry got on a tangent. I'm just excited there are finally enough upgrades to make a new PC worth it. No applause for intel tho it took them 7 years to make a gulftown PC worth upgrading. I should see a nice IPC gain from i7-980x gulftown to skylake-e. I'll be happy with 50-60% IPC gain and 500 extra mhz on my 980x so 4.8ghz. I think 6x 140mm high static pressure noctuas in push/pull and a 420mm rad should provide enough cooling for 4.8ghz on 8 core skylake-e if the chip is capable. Goal is to push it to 5.0ghz tho and get 700mhz speed increase + additional 55% IPC gain.
  • gattberserk - Sunday, April 5, 2015 - link

    Unfortunately Skylake e is not coming in another 2 years. There is no news of BW-E even, and that will be another year before Skylake will come in.

    By den, 750 would have been obsolette, esp with Samsung 3D NAND in NVMe PCIe SSD.
  • JatkarP - Saturday, April 4, 2015 - link

    <$1/GB at 2400/1200 MBps R/W performance. What else you need !!
  • Ethos Evoss - Saturday, April 4, 2015 - link

    |I wud rather go for new Plextor which is 5 time cheaper and with same specs..

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