Samsung 960 Pro SSD - not getting the max speed

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euorinsm

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May 29, 2017
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Is there anyway to tell if I am getting the max speed out of my SSD? I have a feeling it's not. I double checked, I installed the nvme drivers, have the latest firmware. I have drive indexing turned off. I ran the Magician benchmark utility and for the result this is what I got:

Sequential (MB/s) Read: 2,791 Write: 1,934
Random(IOPS) Read:338,080 Write: 338,892
attachment.php

Can anyone check to see if its normal?
 
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That MB supports all current NVME drives. Anyway, besides trying a PCIe M.2 adapter you may want to uninstall then reinstall the NVME driver from Samsung and see if that helps.
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Richard_253

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May 28, 2017
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The Samsung Magician performance test has been extremely inconsistent and unreliable. Suggest you test with Crystal DisKMark. For less inflated results (and maybe more accurate) try AS SSD Benchmark.
 
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Richard_253

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May 28, 2017
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That seems pretty close to Samsung's speed claims. The difference is negligible:

960 PRO
Form Factor
M.2
Capacity
512 GB, 1024 GB, 2048 GB
Sequential Read Speed
Max 3,500 MB/sec
Sequential Write Speed
Max 2,100 MB/sec
 
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euorinsm

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May 29, 2017
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I know i'm probably asking for too much, but I still think that score could be improved a little bit. I seen some people who've had a higher score than I do, and my hardware is really good. Can there be something else I'm missing?
 
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Karadjgne

Karadjgne

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Size of the drive vrs what's actually used, if the drive is more than 1/2 full, expect a little slow down. Motherboard capability and performance. Some mobo's simply don't quite live upto full performance claims, they might be 98% capable, which is close enough. But that 2% will show up in your benchmark as slightly slower speeds. NVMe and mobo drivers the same, might not be a full 100% optimized, might be only 98% optimized, so benchmark is affected.

Your speeds are close enough to Samsung ability that it honestly makes 0 difference to anything but a benchmark. On something like a 1hr run stress bench, you'd see a few seconds at most difference
 
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Richard_253

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May 28, 2017
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The only thing that I can suggest is if using a built in M.2 slot on your MB, instead try a PCIe M.2 adapter card.

I am using one for my 960 EVO 250GB boot drive and getting Samsung stated speeds (btw, the 960 EVO costs much less, ~$130, than the 960 Pro and offers just about the same speeds):

i9kIVT.jpg
 
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euorinsm

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May 29, 2017
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Yeah that's really strange, you have the EVO version and your scores are a little better than mine even though I have the faster version. I don't have an M.2 adapter to test it , but my I know my motherboard is capable of those speeds. And here is my motherboard btw:
http://www.gigabyte.com/Motherboard/GA-X99-Ultra-Gaming-rev-10#ov

On their M.2 support list you'll see it has the 950 Pro on there , but i guess they didn't update it for the 960.
 
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Richard_253

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May 28, 2017
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That MB supports all current NVME drives. Anyway, besides trying a PCIe M.2 adapter you may want to uninstall then reinstall the NVME driver from Samsung and see if that helps.
 
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