Technology content trusted in North America and globally since 1999
7,699 Reviews & Articles | 57,081 News Posts

Samsung PM961 1TB M.2 NVMe PCIe SSD Review

By: Jon Coulter | m.2 SSDs in Storage | Posted: May 8, 2017 4:01 am
TweakTown Rating: 96%Manufacturer: Samsung

Iometer – Maximum IOPS

 

Version and / or Patch Used: Iometer 2014

 

We use Iometer to measure high queue depth performance. (No Partition)

 

Max IOPS Read

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_43

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_44

 

Max IOPS Write

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_45

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_46

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_47

 

We test NVMe SSDs using eight threads at QD32, or QD256. We do this because we want to see what the drive can generate at its maximum attainable queue depth. Maximum random performance is similar between the two platforms at high queue depths, which is what we've seen throughout our testing.

 

 

 

Iometer – Disk Response

 

Version and / or Patch Used: Iometer 2014

 

We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.

 

Avg. Write Response

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_48

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_49

 

Avg. Read Response

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_50

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_51

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_52

 

Disk response is significantly better (lower) on the Intel platform. Additionally, the results of our testing show the 1TB PM961 delivering better response than the 960 EVO 1TB.

 

DiskBench – Transfer Rate

 

Version and / or Patch Used: 2.6.2.0

 

We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our Toshiba RD400 1TB NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive's read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.

 

Write Transfer Rate

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_53

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_54

 

Read Transfer Rate

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_55

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_56

 

samsung-pm961-1tb-2-nvme-pcie-ssd-review_57

 

We recently upgraded our test system to Windows 10 build 14393. With that upgrade, write transfer rates almost doubled. The reason for this, as far as we know, is that CPU power switching modes have been relaxed on the latest version of Windows 10. We included the NVMe drives we've tested to date on this build of Windows 10. If you needed a good reason to upgrade to Windows 10 build 14393; this is a good reason.

 

Transfer rates on our Ryzen platform are a bit lower than we would like to see.

    We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.

Related Tags

Got an opinion on this content? Post a comment below!
loading