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Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZSLW1T0)

The Samsung SSD PM961 is a 1 TB M.2 type SSD with the following specific model ID: MZSLW1T0. The sequential read/writes rates are on par with budget solid state drives released in 2019 and 2020.

Notebookcheck says:

... While the PM961 didn't quite hit the targeted read rates specified by the manufacturer, it still outperformed not only the predecessor PM951, but also the SM951(a) and 950 Pro, which are actually higher up in the lineup - Lenovo ThinkPad T460s Long-Term Review Part 2 | June 2016

TypeSSD
SizeM.2
Capacity1000 GB
InterfaceNVMe
ControllerSamsung Polaris
Announced01.10.2015

Benchmarks

AS SSD - Copy Game
min: 486     avg: 698     median: 698 (12%)     max: 910 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 296     avg: 365.6     median: 365.6 (14%)     max: 435.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 1391     avg: 1535     median: 1534.5 (6%)     max: 1678 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 4110     avg: 4140     median: 4140 (25%)     max: 4170 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 1028     avg: 1136     median: 1135.5 (16%)     max: 1243 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 1982     avg: 2015     median: 2015 (32%)     max: 2048 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.03     avg: 0     median: 0 (0%)     max: 0.033 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.033     avg: 0     median: 0 (0%)     max: 0.048 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 796     avg: 896     median: 896 (15%)     max: 996 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 1683     avg: 1755     median: 1754.5 (34%)     max: 1826 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 112     avg: 118     median: 118 (23%)     max: 124 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 35     avg: 38.5     median: 38.5 (12%)     max: 42.02 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 1188     avg: 1208     median: 1208 (11%)     max: 1228 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 2218     avg: 2392     median: 2392 (19%)     max: 2566 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Write
min: 319     avg: 407.7     median: 407.7 (38%)     max: 496.3 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Read
min: 404     avg: 495     median: 495 (38%)     max: 586 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Write
min: 126     avg: 138.1     median: 138.1 (4%)     max: 150.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Read
min: 37     avg: 41.7     median: 41.7 (1%)     max: 46.31 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Write
1031 MB/s (11%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Read
546 MB/s (11%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Write
min: 1193     avg: 1240     median: 1239.5 (12%)     max: 1286 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Read
min: 1510     avg: 1593     median: 1593 (18%)     max: 1676 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
HD Tune Transfer Rate Minimum - HD Tune Transfer Rate Minimum
1323 MB/s (66%)
+ 1 benchmarks and specifications   + Show comparison chart
HD Tune Transfer Rate Average - HD Tune Transfer Rate Average
1399 MB/s (58%)
+ 1 benchmarks and specifications   + Show comparison chart
HD Tune Transfer Rate Maximum - HD Tune Transfer Rate Maximum
1408 MB/s (56%)
+ 1 benchmarks and specifications   + Show comparison chart
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Amazon Logo
  • Samsung 990 EVO Plus SSD 1TB, PCIe Gen 4x4, Gen 5x2 M.2 2280, Speeds Up-to 7,150 MB/s, Upgrade Storage for PC/Laptops, HMB Technology and Intelligent Turbowrite 2.0, (MZ-V9S1T0B/AM)
  • Crucial P310 1TB SSD, PCIe Gen4 NVMe M.2 2280, Up to 7,100MB/s, for Laptop, Desktop (PC), & Handheld Gaming Consoles, Includes Acronis Data Recovery Software, Solid State Drive - CT1000P310SSD801
  • SAMSUNG 1TB M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 TLC SSD (MZ9LQ1T0HBLB) for Xbox Surface Pro Steam Deck Dell HP Lenovo Laptop Ultrabook Tablet - Internal Solid State Drive (OEM New)
  • Samsung SSD 1TB PM9A1 NVMe PCIe 3.0 Gen3 x4 MZVL21T0HCLR 00BD1 KG5N3 0KG5N3 Solid State Drive for Dell Alienware HP Lenovo Laptop Desktop
  • Samsung 990 PRO Heatsink SSD 1TB, NVMe M.2, Speeds Up to 7,450MB/s, Best for PlayStation 5 (PS5 SSD) Console Expansion MZ-V9P1T0CW

Add one or more devices and compare

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v1.35
log 13. 20:08:54

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 no ids found in url (should be separated by "_") +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Thu, 12 Feb 2026 01:11:47 +0100 +0.002s ... 0.002s

#4 composed specs +0.003s ... 0.006s

#5 did output specs +0s ... 0.006s

#6 getting avg benchmarks for device 810 +0.009s ... 0.015s

#7 got single benchmarks 810 +0.005s ... 0.02s

#8 got avg benchmarks for devices +0s ... 0.02s

#9 min, max, avg, median took s +3.712s ... 3.732s

#10 return log +0.675s ... 4.408s

Notebook reviews with Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZSLW1T0)

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Klaus Hinum (Update: 2020-03-19)