Intel 750 PCIe SSD 1.2TB Slow Benchmarks on CrystalDiskMark??

[TScha5]

Is anybody getting slow speeds with the Intel 750 SSD after updating to the Intel NVMe Drivers? I'm not positive that the speeds I'm getting are, in fact, slow but I have posted some pics below along with a comparison pic of a https://www.youtube.com/watch?v=JMSq8nmDTO0 video on YouTube by Asus and Intel where their speeds are much greater for some of the tests. I believe I set the test correctly. I set it to 3 (not sure what that is) and 8GB (not really sure what that is either but they say to do that in the video). Just looking for any input or ideas... And maybe I'm just being overly neurotic about the numbers matching exactly but in some cases their numbers are literally double what mine are, and I have the Intel NVMe drivers installed...soooooo....not sure what to do, or if there even is anything I can do at this point...????

PC Build:

CPU: i7-6700k Skylake

MoBo: GA-Z170X Gaming 7 Gigabyte Motherboard (BIOS: F6b)

RAM: 16GB G.Skill DDR4

Primary Drive: Intel 750 PCIe SSD 1.2TB (Intel Driver 1.3.0.1007 (Latest))

Secondary Drive: 8TB HGST UltraStar HDD 7200RPM

This was the test prior to installing Intel NVMe drivers.... (my apologies for the sideways pics....)

This is after installing Intel NVMe drivers......

HOWEVER, if you look at the benchmarks from thehttps://www.youtube.com/watch?v=hxpwmrmw6jI Intel 750 Interview by Intel and Asus on YouTube....at 20:15 their speeds are significantly higher for Seq, 4k, and 4kQ32T1.....

As you can see, their 4K Reads/Writes are double mine. And the "Seq" numbers are significantly greater as well.

I believe I have installed the proper Intel NVMe drivers but I took some pics just in case... from reading other posts here at the Intel Community Forum I realized I was initially looking in the wrong place b/c I was thinking I couldn't get the Intel drivers to install b/c I was looking at the disk drive details..like below...

So I looked at the Storage Controller in Device Manager...

So I guess my question is why am I getting such slow speeds if I've done everything I can to get this working right.....??????????? Any ideas..??

Thanks,

Tyson

[TScha5]

Right, I understand that I need to use queuing and multiple threading etc.. for the top numbers... BUT, what is puzzling to me is how and why are they getting higher numbers (the bottom numbers that are T=1, Q=1)? Just check their https://www.youtube.com/watch?v=JMSq8nmDTO0 numbers at 25:13..(different video but the same results that I guess Intel was told to show everybody b/c they are the exact same numbers shown on every YouTube video out there). Their bottom 2 numbers are T1 and Q1. So how is it that their Q1 numbers are double mine?

Now, my Q32 T8 numbers are looking pretty good and my system is noticeably faster than my last SSD so I'm willing to just drop all this if you tell me I don't need to be concerned with the bottom numbers. I just want to make sure I'm maximizing the performance of my drive. And when I see someone else with the exact same drive get any numbers that are double mine under the exact same configuration, which in fact, they are, then I start to worry. But if you tell me I don't need to worry about those then I will be good.

[jbenavides]

Hello Tysoncreative,

The test parameters will have a direct impact in the results.

When the drive is under normal operation the computer will use different data threads and queue depth. A test using a single Worker and no command queuing will always have low results. Those results should not be relevant if you are measuring the actual performance of the SSD.

[GANDE4]

You guys hit the nail on the head with the Pcie lanes. Thank you.

My system:

ASUS Z170-Deluxe Bios 1702

i7-6700K

SSDPEDMW800G4X1

Intel SSD Toolbox 3.3.3

SSD Driver 1.3.0.1007

Pcie x16 slot_1 = GTX980Ti @ x16

Pcie x 16 slot_2 = empty

Pcie x16 Slot_3 = SSD @ ?

I assumed (oh that word) with bios on auto Slot_3 would have 4-lanes available but... this was incorrect as this slot is shared IRQ with amongst other things, the Intel SATA ports. So with Pcie bios setting = Auto the SSD was only getting 2-lanes.

I manually set the pcie slot_3 in the bios to x4 this incidentally has disabled the Intel SATA ports which sucks; however the SSD meets specs when tested with Iometer.

Iometer:

Seq write = 790- close enough. I was using the pc while the test was occurring.

Seq read = 2182

Ran read = 430212

Ran write = 196231 - close enough.

Not sure what the deal is with Crystal:

Now I just need figure out how to get my SATA ports back without some elaborate reassignment of IRQ's. I have 2-SATA ports on the ASMEDIA driver but need one more.

Alternatively I could move SSD to slot_2 and run the GPU @ 8x which is fine (Pcie 3.0) but not what I signed up for (what happens when an enterprise level device meets gaming enthusiast).

Edit: Only SATA 5 and 6 ports are disabled, we are good to go as I have plenty of SATA ports now.

[jbenavides]

Hello truck911,

We are glad to know this information was useful and that you were able to find a configuration that suits your needs. This will be very useful for other users looking for the best way to add the Intel® SSD 750 Series to their systems.

[TScha5]

Yeah I think this is probably an issue of me not understanding how to use CrystalDiskMark properly. I'll do some more research and see if I can figure out how to change those settings. I thought, upon watching that YouTube video, that all I had to do was change the second numeric value to 8GB and it would change it to 4KQ32T8, but it's still saying 4KQ32T1....just realized that...sorry. But thank you for the prompt response and assistance mate! It's why I love Intel and have been a Intel SSD fan since the Cherryville 520.