Average Bench: 152% (110th of 1011)

Based on 1,444 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 52.1% 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 587MB/s
Avg. 4K-64Thread Read Speed 775MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 105%. 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 463MB/s
Avg. Sustained Write Speed 617MB/s
ADVERTISEMENT

Average Bench

(Based on 1,444 samples)
Min Avg Max
678 Read 951 1,105
284 Write 644 833
348 Mixed 463 543
153 SusWrite 617 920
149% 669 MB/s
Min Avg Max
15.8 4K Read 33.3 40.7
36.2 4K Write 106 154
17.3 4K Mixed 37.5 51.2
155% 59 MB/s
Min Avg Max
170 DQ Read 775 1,045
162 DQ Write 570 824
134 DQ Mixed 587 747
462% 644 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
911GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 911 930 932 903 906 908 MB/s
Read 1,119
Write 824
Mixed 477
SusWrite 915
186% 834 MB/s
4K Read 35.5
4K Write 145
4K Mixed 36.7
178% 72.4 MB/s
DQ Read 1050
DQ Write 823
DQ Mixed 748
611% 874 MB/s
856GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 869 921 926 931 932 914 MB/s
Read 823
Write 837
Mixed 493
SusWrite 916
173% 767 MB/s
4K Read 28.1
4K Write 146
4K Mixed 43.1
175% 72.4 MB/s
DQ Read 1,035
DQ Write 824
DQ Mixed 753
611% 870 MB/s
353GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 607 617 572 556 525 491 MB/s
Read 1,120
Write 644
Mixed 545
SusWrite 561
160% 718 MB/s
4K Read 38.4
4K Write 131
4K Mixed 50.4
192% 73.4 MB/s
DQ Read 1,007
DQ Write 585
DQ Mixed 700
547% 764 MB/s
748GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 902 915 918 317 174 175 MB/s
Read 1,076
Write 798
Mixed 498
SusWrite 567
164% 735 MB/s
4K Read 36.7
4K Write 122
4K Mixed 47.2
180% 68.5 MB/s
DQ Read 968
DQ Write 815
DQ Mixed 734
593% 839 MB/s
658GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 647 671 654 648 643 676 MB/s
Read 1,064
Write 667
Mixed 441
SusWrite 656
157% 707 MB/s
4K Read 35.4
4K Write 125
4K Mixed 46
179% 68.8 MB/s
DQ Read 985
DQ Write 585
DQ Mixed 700
544% 757 MB/s
566GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 900 886 892 695 297 376 MB/s
Read 978
Write 826
Mixed 523
SusWrite 674
168% 750 MB/s
4K Read 37.9
4K Write 114
4K Mixed 47.4
179% 66.5 MB/s
DQ Read 997
DQ Write 662
DQ Mixed 731
572% 797 MB/s
459GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 660 650 666 656 661 650 MB/s
Read 985
Write 619
Mixed 520
SusWrite 657
155% 695 MB/s
4K Read 36.2
4K Write 120
4K Mixed 47.5
179% 67.8 MB/s
DQ Read 919
DQ Write 579
DQ Mixed 712
541% 737 MB/s
319GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 490 457 432 382 426 466 MB/s
Read 911
Write 413
Mixed 462
SusWrite 442
124% 557 MB/s
4K Read 25.9
4K Write 114
4K Mixed 39.8
150% 59.9 MB/s
DQ Read 925
DQ Write 546
DQ Mixed 704
533% 725 MB/s
1,444 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,849,350 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 6,479 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 41%
Speed boat

System: Dell XPS 15 9550

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 512GB 1TB 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.

UserBenchmark of the month

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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) December 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]

ADVERTISEMENT

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 $145Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $39
Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 860 Evo 250GB $54
HDDRAMUSB
Seagate Barracuda 1TB (2016) $32Corsair Vengeance LPX DDR4 3200 C16 2x8GB $76SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $58SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback