Average Bench: 136% (119th of 1003)

Based on 3,335 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 36.4% 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 493MB/s
Avg. 4K-64Thread Read Speed 764MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB is 79.6%. 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 387MB/s
Avg. Sustained Write Speed 420MB/s
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Average Bench

(Based on 3,335 samples)
Min Avg Max
618 Read 943 1,107
216 Write 498 581
281 Mixed 387 457
146 SusWrite 420 570
124% 562 MB/s
Min Avg Max
15.5 4K Read 35.3 41.5
41.5 4K Write 106 154
13.4 4K Mixed 34.4 45.4
154% 58.5 MB/s
Min Avg Max
143 DQ Read 764 1,042
156 DQ Write 465 592
98.3 DQ Mixed 493 605
400% 574 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
428GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 551 557 565 566 563 564 MB/s
Read 962
Write 566
Mixed 453
SusWrite 561
141% 636 MB/s
4K Read 41.1
4K Write 150
4K Mixed 42.7
196% 78 MB/s
DQ Read 1,048
DQ Write 584
DQ Mixed 600
504% 744 MB/s
304GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 563 566 572 571 570 573 MB/s
Read 1,047
Write 575
Mixed 425
SusWrite 569
145% 654 MB/s
4K Read 37.4
4K Write 127
4K Mixed 42.4
178% 68.9 MB/s
DQ Read 1,001
DQ Write 586
DQ Mixed 605
501% 730 MB/s
428GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 560 563 563 563 562 561 MB/s
Read 969
Write 568
Mixed 427
SusWrite 562
140% 632 MB/s
4K Read 36.9
4K Write 134
4K Mixed 43.8
183% 71.7 MB/s
DQ Read 962
DQ Write 582
DQ Mixed 596
491% 713 MB/s
388GB free
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 558 556 557 560 557 555 MB/s
Read 975
Write 566
Mixed 422
SusWrite 557
140% 630 MB/s
4K Read 30.3
4K Write 86.9
4K Mixed 35.2
137% 50.8 MB/s
DQ Read 1,029
DQ Write 577
DQ Mixed 593
498% 733 MB/s
454GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 571 573 575 578 571 573 MB/s
Read 856
Write 577
Mixed 407
SusWrite 573
135% 604 MB/s
4K Read 27.9
4K Write 124
4K Mixed 21.3
135% 57.8 MB/s
DQ Read 1,010
DQ Write 577
DQ Mixed 595
496% 727 MB/s
128GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 215 174 187 181 184 181 MB/s
Read 746
Write 386
Mixed 359
SusWrite 187
93% 419 MB/s
4K Read 26.2
4K Write 59.2
4K Mixed 22.8
100% 36.1 MB/s
DQ Read 672
DQ Write 421
DQ Mixed 503
386% 532 MB/s
3,335 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,811,555 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 5,642 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 44%
Speed boat

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) July 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

1003 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $607SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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