Average Bench: 150% (106th of 1003)

Based on 1,316 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 50.2% 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 503MB/s
Avg. 4K-64Thread Read Speed 673MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 98.9%. 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 524MB/s
Avg. 4K Random Mixed IO Speed 35.4MB/s
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Average Bench

(Based on 1,316 samples)
Min Avg Max
668 Read 1,017 1,530
304 Write 652 869
347 Mixed 524 1,020
147 SusWrite 615 922
156% 702 MB/s
Min Avg Max
15.9 4K Read 31.8 40.2
35.8 4K Write 104 153
16.3 4K Mixed 35.4 50.7
149% 57.1 MB/s
Min Avg Max
36.5 DQ Read 673 1,033
121 DQ Write 510 822
21.3 DQ Mixed 503 742
400% 562 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
577GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 754 722 722 733 717 712 MB/s
Read 1,106
Write 730
Mixed 520
SusWrite 727
172% 771 MB/s
4K Read 38.4
4K Write 131
4K Mixed 49.2
191% 72.9 MB/s
DQ Read 1,015
DQ Write 624
DQ Mixed 736
571% 792 MB/s
664GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 554 561 614 596 591 580 MB/s
Read 1,055
Write 604
Mixed 546
SusWrite 582
155% 697 MB/s
4K Read 37
4K Write 124
4K Mixed 48.4
184% 69.7 MB/s
DQ Read 928
DQ Write 533
DQ Mixed 610
486% 690 MB/s
303GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 365 330 322 325 317 321 MB/s
Read 1,107
Write 364
Mixed 469
SusWrite 330
125% 567 MB/s
4K Read 37.7
4K Write 120
4K Mixed 36.4
167% 64.7 MB/s
DQ Read 953
DQ Write 518
DQ Mixed 644
504% 705 MB/s
330GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 330 299 294 298 292 280 MB/s
Read 997
Write 455
Mixed 463
SusWrite 299
122% 554 MB/s
4K Read 34.8
4K Write 88
4K Mixed 27.3
134% 50 MB/s
DQ Read 941
DQ Write 492
DQ Mixed 638
495% 691 MB/s
1,316 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,729,423 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 5,632 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 45%
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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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 $120Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $222Nvidia 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) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $77SanDisk Ultra Fit 32GB $12
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