Average Bench: 139% (124th of 1011)

Based on 3,782 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 38.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 499MB/s
Avg. 4K-64Thread Read Speed 778MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB is 81.2%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 389MB/s
Avg. Sustained Write Speed 421MB/s
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Average Bench

(Based on 3,782 samples)
Min Avg Max
650 Read 953 1,107
189 Write 497 581
284 Mixed 389 461
136 SusWrite 421 570
125% 565 MB/s
Min Avg Max
17.8 4K Read 36.9 41.8
43.7 4K Write 108 156
13.8 4K Mixed 35.1 46
158% 60 MB/s
Min Avg Max
175 DQ Read 778 1,043
174 DQ Write 468 592
116 DQ Mixed 499 607
405% 582 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
290GB free
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 546 570 571 569 569 569 MB/s
Read 1,034
Write 578
Mixed 470
SusWrite 566
147% 662 MB/s
4K Read 45.2
4K Write 211
4K Mixed 50.8
245% 102 MB/s
DQ Read 1,046
DQ Write 591
DQ Mixed 602
506% 746 MB/s
302GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 560 553 555 562 557 559 MB/s
Read 919
Write 572
Mixed 431
SusWrite 558
138% 620 MB/s
4K Read 41.5
4K Write 142
4K Mixed 47
198% 77 MB/s
DQ Read 1055
DQ Write 583
DQ Mixed 598
504% 745 MB/s
373GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 565 567 566 567 567 564 MB/s
Read 1,079
Write 572
Mixed 437
SusWrite 566
147% 663 MB/s
4K Read 37.9
4K Write 122
4K Mixed 25.6
155% 61.7 MB/s
DQ Read 1012
DQ Write 584
DQ Mixed 592
496% 729 MB/s
418GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 571 568 572 573 570 568 MB/s
Read 1,020
Write 572
Mixed 409
SusWrite 570
143% 643 MB/s
4K Read 37.7
4K Write 104
4K Mixed 33.8
156% 58.6 MB/s
DQ Read 517
DQ Write 103
DQ Mixed 162
157% 261 MB/s
417GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 566 570 573 576 575 576 MB/s
Read 946
Write 581
Mixed 403
SusWrite 573
139% 626 MB/s
4K Read 38.1
4K Write 104
4K Mixed 34.8
157% 58.9 MB/s
DQ Read 518
DQ Write 105
DQ Mixed 163
158% 262 MB/s
234GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 540 520 540 537 541 537 MB/s
Read 894
Write 554
Mixed 401
SusWrite 536
133% 596 MB/s
4K Read 25.8
4K Write 47.4
4K Mixed 28.8
101% 34 MB/s
DQ Read 262
DQ Write 196
DQ Mixed 244
178% 234 MB/s
3,782 MORE »

 Market Share (See Leaders)

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

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 6,065 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 40%
Jet ski

System: Dell XPS 15 9550

EDIT WITH CUSTOM PC BUILDER

Popular PM951 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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  • - Explore your best upgrade options with a virtual PC build.
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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]

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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.

 Comments

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.
CPUGPUSSD
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
HDDRAMUSB
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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