Average Bench: 139% (123rd of 1011)

Based on 4,205 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 38.8% 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 496MB/s
Avg. 4K-64Thread Read Speed 784MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB is 83%. 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 388MB/s
Avg. Sustained Write Speed 421MB/s
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Average Bench

(Based on 4,205 samples)
Min Avg Max
676 Read 962 1,106
189 Write 491 581
284 Mixed 388 464
128 SusWrite 421 572
125% 565 MB/s
Min Avg Max
20 4K Read 37.3 41.9
43.5 4K Write 108 161
13.9 4K Mixed 34.8 46.1
159% 60.2 MB/s
Min Avg Max
176 DQ Read 784 1,044
156 DQ Write 461 592
112 DQ Mixed 496 608
403% 580 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
383GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 561 568 563 568 567 562 MB/s
Read 1,126
Write 557
Mixed 463
SusWrite 565
150% 678 MB/s
4K Read 42.9
4K Write 196
4K Mixed 49.7
232% 96.1 MB/s
DQ Read 941
DQ Write 576
DQ Mixed 587
484% 701 MB/s
205GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 314 297 290 270 281 266 MB/s
Read 1,112
Write 370
Mixed 393
SusWrite 286
118% 540 MB/s
4K Read 37.9
4K Write 122
4K Mixed 40.7
174% 66.7 MB/s
DQ Read 981
DQ Write 416
DQ Mixed 549
446% 649 MB/s
219GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 513 518 524 498 490 500 MB/s
Read 882
Write 554
Mixed 393
SusWrite 507
130% 584 MB/s
4K Read 34.2
4K Write 90.7
4K Mixed 36.4
146% 53.8 MB/s
DQ Read 942
DQ Write 469
DQ Mixed 560
455% 657 MB/s
145GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 301 279 255 101 101 101 MB/s
Read 1,022
Write 439
Mixed 410
SusWrite 189
113% 515 MB/s
4K Read 37.8
4K Write 128
4K Mixed 43.1
180% 69.7 MB/s
DQ Read 960
DQ Write 456
DQ Mixed 553
452% 656 MB/s
38GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 174 162 165 162 167 160 MB/s
Read 621
Write 174
Mixed 204
SusWrite 165
64% 291 MB/s
4K Read 28.7
4K Write 46
4K Mixed 24.8
100% 33.2 MB/s
DQ Read 521
DQ Write 170
DQ Mixed 412
286% 368 MB/s
19GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 127 105 100 96 95 91 MB/s
Read 829
Write 193
Mixed 266
SusWrite 102
76% 348 MB/s
4K Read 22
4K Write 45.7
4K Mixed 25.3
90% 31 MB/s
DQ Read 250
DQ Write 196
DQ Mixed 233
172% 226 MB/s
4,205 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,104,221 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 6,341 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 60%
Destroyer
Workstation
Workstation 39%
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.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) November 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 $148Nvidia GTX 1660 $210Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660S (Super) $234Samsung 850 Evo 120GB $150
Intel Core i7-9700K $349Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Ultra Fit 32GB $14
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