Average Bench: 225% (50th of 1011)

more Based on 21,014 user benchmarks.  Models: SAMSUNG MZVLB512HAJQ-000L2, SAMSUNG MZVLB512HAJQ-000L7, PM981 NVMe Samsung 512GB, NVMe SAMSUNG MZVLB512, SAMSUNG MZVLB512HAJQ-00000, NVMe PM981 NVMe Samsu

Outstanding average bench

The Samsung PM981 NVMe PCIe M.2 512GB averaged 124.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM981 NVMe PCIe M.2 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 905MB/s
Avg. 4K-64Thread Read Speed 1,026MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM981 NVMe PCIe M.2 512GB is 144%. This is a particularly wide range which indicates that the Samsung PM981 NVMe PCIe M.2 512GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 715MB/s
Avg. 4K Random Write Speed 117MB/s

Average Bench

(Based on 21,014 samples)
Min Avg Max
777 Read 1,691 2,347
801 Write 1,513 1,901
674 Mixed 1,130 1,562
474 SusWrite 715 846
282% 1,262 MB/s
Min Avg Max
30.8 4K Read 53.5 67.3
57.1 4K Write 117 178
36.9 4K Mixed 69.7 92
233% 80.2 MB/s
Min Avg Max
270 DQ Read 1,026 1,607
208 DQ Write 829 1,331
243 DQ Mixed 905 1,409
683% 920 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
446GB free (System drive)
Firmware: EXA7301Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1748 800 593 605 603 604 MB/s
Read 2,276
Write 1,864
Mixed 1,516
SusWrite 825
362% 1,620 MB/s
4K Read 61.8
4K Write 145
4K Mixed 82.7
276% 96.5 MB/s
DQ Read 1,043
DQ Write 897
DQ Mixed 974
729% 971 MB/s
170GB free (System drive)
Firmware: EXA7301Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 830 654 648 612 592 575 MB/s
Read 659
Write 793
Mixed 623
SusWrite 652
154% 682 MB/s
4K Read 58.7
4K Write 125
4K Mixed 76.1
253% 86.7 MB/s
DQ Read 1,332
DQ Write 1,153
DQ Mixed 1,238
929% 1,241 MB/s
21,014 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,666,076 SSDs tested.

Typical PM981 NVMe PCIe M.2 512GB Builds (Compare 10,568 builds) See popular component choices, score breakdowns and rankings.
Gaming 16%
Desktop 90%
Nuclear submarine
Workstation 60%

System: Dell XPS 15 9570


Popular PM981 NVMe PCIe M.2 512GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) September 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Added n/a ago.


17 months ago.

the best money can buy, once mated with Samsung NVMe drivers

1011 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $203
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $34G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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