Average Bench: 136% (146th of 1040)

Based on 5,741 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 35.9% 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 501MB/s
Avg. 4K-64Thread Read Speed 790MB/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 384MB/s
Avg. Sustained Write Speed 407MB/s
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Average Bench

(Based on 5,741 samples)
Min Avg Max
661 Read 955 1,104
180 Write 478 585
254 Mixed 384 467
121 SusWrite 407 571
123% 556 MB/s
Min Avg Max
15.8 4K Read 35.9 41.2
39.3 4K Write 105 153
12.9 4K Mixed 33.4 45.5
153% 58.1 MB/s
Min Avg Max
232 DQ Read 790 1,044
148 DQ Write 448 594
175 DQ Mixed 501 609
404% 580 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
171GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 453 435 436 428 424 425 MB/s
Read 1,133
Write 530
Mixed 392
SusWrite 434
137% 622 MB/s
4K Read 40.1
4K Write 134
4K Mixed 41.2
184% 71.6 MB/s
DQ Read 1,019
DQ Write 527
DQ Mixed 611
497% 719 MB/s
477GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 564 561 564 562 562 562 MB/s
Read 965
Write 569
Mixed 488
SusWrite 562
144% 646 MB/s
4K Read 35.7
4K Write 112
4K Mixed 41.1
166% 62.9 MB/s
DQ Read 987
DQ Write 582
DQ Mixed 597
495% 722 MB/s
114GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 525 531 497 439 327 275 MB/s
Read 1,071
Write 563
Mixed 403
SusWrite 432
137% 617 MB/s
4K Read 36.1
4K Write 109
4K Mixed 42.3
167% 62.6 MB/s
DQ Read 1,005
DQ Write 598
DQ Mixed 605
503% 736 MB/s
56GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 202 187 181 177 176 165 MB/s
Read 1,022
Write 315
Mixed 359
SusWrite 182
103% 470 MB/s
4K Read 37.9
4K Write 134
4K Mixed 38.6
178% 70.2 MB/s
DQ Read 905
DQ Write 388
DQ Mixed 509
413% 601 MB/s
60GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 205 185 177 182 179 175 MB/s
Read 878
Write 309
Mixed 318
SusWrite 184
92% 422 MB/s
4K Read 32.1
4K Write 138
4K Mixed 31.8
162% 67.3 MB/s
DQ Read 987
DQ Write 398
DQ Mixed 509
425% 631 MB/s
137GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 150 159 176 166 150 145 MB/s
Read 906
Write 292
Mixed 294
SusWrite 158
90% 413 MB/s
4K Read 31.5
4K Write 135
4K Mixed 37.2
167% 67.8 MB/s
DQ Read 890
DQ Write 356
DQ Mixed 474
390% 573 MB/s
404GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 558 558 545 537 546 373 MB/s
Read 728
Write 559
Mixed 388
SusWrite 519
123% 549 MB/s
4K Read 23
4K Write 35.1
4K Mixed 25.4
86% 27.8 MB/s
DQ Read 194
DQ Write 146
DQ Mixed 180
132% 174 MB/s
5,741 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 34,682,468 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 1,774 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 11%
Tree trunk

System: Dell XPS 15 9550

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 512GB systems:

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Solid State Drive Rankings (Price vs Performance) November 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

1040 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 $190Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $34
Intel Core i5-9400F $148Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $44
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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