Samsung SM951-NVMe (256GB) PCIe SSD Review
by Kristian Vättö on June 25, 2015 9:40 AM ESTATTO - Transfer Size vs Performance
I'm keeping our ATTO test around because it's a tool that can easily be run by anyone and it provides a quick look into performance scaling across multiple transfer sizes. I'm providing the results in a slightly different format because the line graphs didn't work well with multiple drives and creating the graphs was rather painful since the results had to be manually inserted cell be cell as ATTO doesn't provide a 'save as CSV' functionality.
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AS-SSD Incompressible Sequential Performance
I'm also keeping AS-SSD around as it's freeware like ATTO and can be used by our readers to confirm that their drives operate properly. AS-SSD uses incompressible data for all of its transfers, so it's also a valuable tool when testing SandForce based drives that perform worse with incompressible data.
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CrazyElf - Thursday, June 25, 2015 - link
@Kristian VättöDoes Windows 10 have better drivers for NVMe SSDs?
It is looking like right now that the SSD 750 might turn out to be the equal of the X-25 SSD in someday popularizing NVMe SSDs.
That being said, for the end consumer I'm not sure it matters as much over a SATA SSD. After all, the typical average user probably values the 4k @QD1/2 above all else, so perhaps these PCI-E SSDs will remain a niche product, unless the price reaches near parity with SATA SSDs, which won't happen for at least a few years.
The big advantage these PCI-E SSDs have is mostly sequential and for write-intensive work.
dgingeri - Thursday, June 25, 2015 - link
Windows 10 is still in development. They're still trying to improve things before the release day. I'm running the 10130 build, and it has many issues. I don't think it would be wise to do any benchmarks under the current Win10 build, and may not be good even under what gets released.hans_ober - Thursday, June 25, 2015 - link
Forget performance/benchmarks, even the UI is unstable. Window manager hangs, quits app. Many issues.Flunk - Thursday, June 25, 2015 - link
Try installing the production gpu drivers. The Beta ones that are automatically installed are quite crashy because they're still working on Direct X 12 support..Gigaplex - Thursday, June 25, 2015 - link
That doesn't apply in my case as I'm using a laptop with Intel graphics that aren't capable of DX12.nathanddrews - Friday, June 26, 2015 - link
Not sure which Intel graphics you have, but I was successful just installing the current 7/8.1 64bit drivers.AlenChakarov - Thursday, June 25, 2015 - link
Huh? Windows 10 has been rock-hard stable for me for quite a while now. Considering it's shipping a month from now, that's how it should be. Is your statement up-to-date?Gigaplex - Thursday, June 25, 2015 - link
I'm running the latest build, and I get a highly visible explorer crash every time I shut down or restart.Notmyusualid - Sunday, June 28, 2015 - link
BS.It is full of holes.
If there is one thing I've learned about software, if Microsoft say Beta, they really do mean it...
kmmatney - Thursday, June 25, 2015 - link
Yeah - I'm running the insider preview, and I'm a bit surprised at how rough things still are. It's stable - it just that a lot of thing don't work smoothly - especially with the App store and Modern Apps. My statement is up to date.