Samsung SM951 

Released January, 2015
  • 256 GB
  • PCI-Express
First it looks like the performance scales nicely, but after queue depth of two the performance actually degrades.
by Kristian-Vättö (Feb, 2015)
To give you the best of both worlds, I'm providing both the easy and quick to read graphs as well as the full data for those who want to dig in a bit deeper.
by Kristian-Vättö (Feb, 2015)

In The News From around the web

24
Feb

Samsung SM951 (512GB) PCIe SSD Review

by Kristian Vättö |
www.anandtech.com
Despite the lack of NVMe, there's no arguing about the fact that the SM951 is the fastest client SSD and by a very healthy margin.
However, it's nowhere near the maximum bandwidth of the PCIe 3.0 x4 bus, though, which should be about 3.2GB/s (PCIe only has ~80% efficiency with overhead after the 128b/132b scheme used by PCIe 3.0).
14
Jan

Samsung Launches SM951 M.2 PCIe 3.0 x4 SSD for OEMs/SIs

by Kristian Vättö |
www.anandtech.com
The XP941, in turn, uses about 50mW as per Samsung's data sheet, so it's a fairly significant increase in power efficiency.
Random performance isn't as impressive but the SM951 is still capable of up to 130K random read and 85K random write IOPS.

Specifications Full list of technical specs

storage

Capacity 256 GB
Interface PCI-Express
Memory type MLC

manufacturer performance

MTBF 1,500,000 hours

form factor

Thickness 4 mm
Weight 10 g
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