Average Bench: 139% (155th of 1058)

Based on 7,388 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 512GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB averaged 39.4% 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 501MB/s
Avg. 4K-64Thread Read Speed 811MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB is 86.8%. 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 383MB/s
Avg. Sustained Write Speed 414MB/s
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Average Bench

(Based on 7,388 samples)
Min Avg Max
655 Read 974 1,113
173 Write 482 583
247 Mixed 383 471
105 SusWrite 414 573
125% 563 MB/s
Min Avg Max
18.3 4K Read 39.2 42
39.9 4K Write 107 158
12.3 4K Mixed 34.3 46.5
160% 60.2 MB/s
Min Avg Max
266 DQ Read 811 1,045
132 DQ Write 453 595
156 DQ Mixed 501 609
408% 588 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
429GB free
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 574 576 574 576 576 572 MB/s
Read 1,057
Write 575
Mixed 470
SusWrite 574
149% 669 MB/s
4K Read 39.4
4K Write 163
4K Mixed 47
206% 83.1 MB/s
DQ Read 1,051
DQ Write 595
DQ Mixed 603
508% 750 MB/s
145GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 504 544 446 549 473 515 MB/s
Read 1,069
Write 395
Mixed 337
SusWrite 505
127% 576 MB/s
4K Read 37.7
4K Write 132
4K Mixed 41.2
180% 70.4 MB/s
DQ Read 845
DQ Write 427
DQ Mixed 536
425% 602 MB/s
273GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 472 464 529 521 484 494 MB/s
Read 1,043
Write 535
Mixed 389
SusWrite 494
136% 615 MB/s
4K Read 38.4
4K Write 120
4K Mixed 36.7
169% 65 MB/s
DQ Read 780
DQ Write 529
DQ Mixed 574
450% 628 MB/s
409GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 560 570 571 568 569 569 MB/s
Read 902
Write 570
Mixed 457
SusWrite 568
139% 624 MB/s
4K Read 24.8
4K Write 75.2
4K Mixed 33.3
120% 44.4 MB/s
DQ Read 526
DQ Write 363
DQ Mixed 438
329% 442 MB/s
186GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 490 541 544 561 404 343 MB/s
Read 904
Write 460
Mixed 364
SusWrite 480
122% 552 MB/s
4K Read 29.1
4K Write 82.3
4K Mixed 33.6
131% 48.3 MB/s
DQ Read 579
DQ Write 398
DQ Mixed 484
362% 487 MB/s
186GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 383 371 374 362 348 340 MB/s
Read 934
Write 461
Mixed 371
SusWrite 363
118% 532 MB/s
4K Read 30.8
4K Write 99.6
4K Mixed 34.8
144% 55.1 MB/s
DQ Read 642
DQ Write 415
DQ Mixed 484
373% 514 MB/s
31GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 203 162 145 135 105 113 MB/s
Read 943
Write 263
Mixed 305
SusWrite 144
90% 414 MB/s
4K Read 35.5
4K Write 104
4K Mixed 37.7
157% 59.2 MB/s
DQ Read 909
DQ Write 407
DQ Mixed 516
420% 611 MB/s
32GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 127 96 86 96 93 93 MB/s
Read 792
Write 116
Mixed 227
SusWrite 98.5
67% 308 MB/s
4K Read 29.6
4K Write 108
4K Mixed 10.7
116% 49.5 MB/s
DQ Read 686
DQ Write 176
DQ Mixed 334
271% 398 MB/s
7,388 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 49,497,839 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB Builds (Compare 3,166 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 10%
Tree trunk

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

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) December 2021 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

1058 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 i5-12600K $300Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $315Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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