Average Bench: 154% (112th of 1016)

Based on 1,472 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 54.5% 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 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 604MB/s
Avg. 4K-64Thread Read Speed 804MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 102%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 512GB 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 464MB/s
Avg. Sustained Write Speed 622MB/s
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Average Bench

(Based on 1,472 samples)
Min Avg Max
682 Read 958 1,110
293 Write 651 835
350 Mixed 464 544
137 SusWrite 622 916
150% 674 MB/s
Min Avg Max
16.3 4K Read 34.6 41
37.6 4K Write 108 155
17.4 4K Mixed 38 51.6
158% 60.1 MB/s
Min Avg Max
197 DQ Read 804 1,047
167 DQ Write 582 826
177 DQ Mixed 604 749
475% 663 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
877GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 916 916 910 935 930 898 MB/s
Read 1,016
Write 828
Mixed 489
SusWrite 917
182% 813 MB/s
4K Read 32.8
4K Write 135
4K Mixed 44
177% 70.5 MB/s
DQ Read 1001
DQ Write 681
DQ Mixed 724
572% 802 MB/s
877GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 908 901 918 935 928 913 MB/s
Read 758
Write 835
Mixed 487
SusWrite 917
169% 749 MB/s
4K Read 30.7
4K Write 136
4K Mixed 48.1
180% 71.5 MB/s
DQ Read 998
DQ Write 682
DQ Mixed 716
568% 799 MB/s
763GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 693 664 680 670 670 689 MB/s
Read 982
Write 644
Mixed 512
SusWrite 678
157% 704 MB/s
4K Read 36.9
4K Write 114
4K Mixed 45
174% 65.3 MB/s
DQ Read 838
DQ Write 598
DQ Mixed 708
531% 715 MB/s
607GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 865 790 581 578 575 650 MB/s
Read 970
Write 751
Mixed 513
SusWrite 673
163% 727 MB/s
4K Read 33.4
4K Write 89
4K Mixed 43.4
153% 55.3 MB/s
DQ Read 1,017
DQ Write 664
DQ Mixed 722
570% 801 MB/s
383GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 560 466 480 405 385 404 MB/s
Read 1054
Write 542
Mixed 444
SusWrite 450
138% 623 MB/s
4K Read 39.4
4K Write 158
4K Mixed 40.2
195% 79 MB/s
DQ Read 1,012
DQ Write 512
DQ Mixed 695
534% 740 MB/s
302GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 397 373 371 359 356 359 MB/s
Read 1032
Write 413
Mixed 422
SusWrite 369
123% 559 MB/s
4K Read 35
4K Write 126
4K Mixed 47.7
181% 69.5 MB/s
DQ Read 1,003
DQ Write 472
DQ Mixed 684
522% 720 MB/s
873GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 681 718 716 715 896 913 MB/s
Read 895
Write 819
Mixed 448
SusWrite 773
165% 734 MB/s
4K Read 31.2
4K Write 83.5
4K Mixed 36.7
138% 50.5 MB/s
DQ Read 624
DQ Write 471
DQ Mixed 473
374% 522 MB/s
283GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 309 307 304 283 270 271 MB/s
Read 1,042
Write 433
Mixed 442
SusWrite 291
122% 552 MB/s
4K Read 35.3
4K Write 108
4K Mixed 30.1
149% 57.7 MB/s
DQ Read 729
DQ Write 494
DQ Mixed 598
450% 607 MB/s
866GB free (System drive)
Firmware: 7D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 91 91 91 91 91 92 MB/s
Read 1,041
Write 808
Mixed 223
SusWrite 91.2
119% 541 MB/s
4K Read 33.2
4K Write 81.1
4K Mixed 49.6
157% 54.6 MB/s
DQ Read 998
DQ Write 88.2
DQ Mixed 113
191% 400 MB/s
1,472 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,680,567 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 6,781 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 41%
Speed boat

System: Dell XPS 15 9550

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 512GB 1TB systems:

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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

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Solid State Drive Rankings (Price vs Performance) January 2020 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

1016 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 i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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