Average Bench: 140% (127th of 1016)

Based on 4,520 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 39.6% 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 515MB/s
Avg. 4K-64Thread Read Speed 831MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB is 83.7%. 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 390MB/s
Avg. Sustained Write Speed 428MB/s
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Average Bench

(Based on 4,520 samples)
Min Avg Max
674 Read 936 1,106
205 Write 496 583
278 Mixed 390 464
124 SusWrite 428 572
125% 563 MB/s
Min Avg Max
17.6 4K Read 34.4 42
47.5 4K Write 114 173
15.7 4K Mixed 35.4 46.4
158% 61.1 MB/s
Min Avg Max
238 DQ Read 831 1,045
153 DQ Write 471 595
165 DQ Mixed 515 609
420% 606 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
378GB free (System drive)
Firmware: 7D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 572 573 575 574 574 575 MB/s
Read 949
Write 584
Mixed 458
SusWrite 574
143% 641 MB/s
4K Read 41.9
4K Write 146
4K Mixed 40.5
193% 76.2 MB/s
DQ Read 923
DQ Write 595
DQ Mixed 608
494% 708 MB/s
151GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 562 563 554 526 500 488 MB/s
Read 975
Write 577
Mixed 425
SusWrite 532
140% 627 MB/s
4K Read 39.8
4K Write 114
4K Mixed 42.5
175% 65.5 MB/s
DQ Read 1,012
DQ Write 595
DQ Mixed 584
494% 730 MB/s
117GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 246 185 194 189 170 179 MB/s
Read 1,109
Write 401
Mixed 382
SusWrite 194
114% 522 MB/s
4K Read 38.4
4K Write 137
4K Mixed 37.1
178% 70.8 MB/s
DQ Read 1,009
DQ Write 411
DQ Mixed 555
452% 658 MB/s
203GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 552 449 378 357 166 142 MB/s
Read 834
Write 563
Mixed 416
SusWrite 341
120% 539 MB/s
4K Read 31.6
4K Write 108
4K Mixed 22.2
133% 53.9 MB/s
DQ Read 983
DQ Write 558
DQ Mixed 602
493% 714 MB/s
68GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 135 123 125 131 115 131 MB/s
Read 494
Write 195
Mixed 280
SusWrite 127
60% 274 MB/s
4K Read 32
4K Write 127
4K Mixed 27.9
152% 62.4 MB/s
DQ Read 902
DQ Write 208
DQ Mixed 348
309% 486 MB/s
217GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 467 461 96 134 134 133 MB/s
Read 968
Write 512
Mixed 367
SusWrite 237
115% 521 MB/s
4K Read 29.6
4K Write 92.9
4K Mixed 29.8
132% 50.8 MB/s
DQ Read 32.7
DQ Write 99.3
DQ Mixed 151
91% 94.2 MB/s
4,520 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,624,497 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 6,779 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
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

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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  • - Share your opinion by voting.
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 i5-9400F $155Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9600K $218Nvidia 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) $42Corsair 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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