Average Bench: 157% (136th of 1058)

Based on 2,213 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 57.4% 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 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 606MB/s
Avg. 4K-64Thread Read Speed 821MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 107%. 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 460MB/s
Avg. 4K Random Mixed IO Speed 37.8MB/s
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Average Bench

(Based on 2,213 samples)
Min Avg Max
608 Read 970 1,112
260 Write 654 838
312 Mixed 460 563
156 SusWrite 645 933
152% 682 MB/s
Min Avg Max
18 4K Read 37.4 41.1
32.8 4K Write 106 153
16.5 4K Mixed 37.8 52.2
161% 60.4 MB/s
Min Avg Max
239 DQ Read 821 1,049
114 DQ Write 582 828
153 DQ Mixed 606 752
479% 670 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
896GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 906 914 926 924 926 914 MB/s
Read 1,019
Write 821
Mixed 497
SusWrite 918
182% 814 MB/s
4K Read 33.2
4K Write 155
4K Mixed 45.6
191% 78 MB/s
DQ Read 1,036
DQ Write 822
DQ Mixed 749
610% 869 MB/s
896GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 825 757 902 916 914 886 MB/s
Read 963
Write 812
Mixed 493
SusWrite 867
176% 784 MB/s
4K Read 33
4K Write 153
4K Mixed 40.5
183% 75.4 MB/s
DQ Read 1,011
DQ Write 814
DQ Mixed 738
600% 854 MB/s
895GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 807 835 924 920 925 898 MB/s
Read 979
Write 809
Mixed 489
SusWrite 885
177% 791 MB/s
4K Read 38.8
4K Write 133
4K Mixed 46.5
189% 72.8 MB/s
DQ Read 895
DQ Write 711
DQ Mixed 728
565% 778 MB/s
879GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 822 837 823 793 904 823 MB/s
Read 1026
Write 855
Mixed 494
SusWrite 834
180% 802 MB/s
4K Read 36
4K Write 124
4K Mixed 47.2
181% 69.1 MB/s
DQ Read 782
DQ Write 640
DQ Mixed 683
519% 702 MB/s
636GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 611 566 587 508 589 621 MB/s
Read 1,023
Write 579
Mixed 453
SusWrite 580
146% 659 MB/s
4K Read 34.5
4K Write 104
4K Mixed 44.7
164% 61 MB/s
DQ Read 999
DQ Write 564
DQ Mixed 718
551% 760 MB/s
873GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 740 634 552 536 521 527 MB/s
Read 1,031
Write 815
Mixed 486
SusWrite 585
163% 729 MB/s
4K Read 34.5
4K Write 120
4K Mixed 44.4
172% 66.1 MB/s
DQ Read 909
DQ Write 514
DQ Mixed 631
491% 685 MB/s
597GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 648 663 648 674 671 688 MB/s
Read 1,000
Write 542
Mixed 414
SusWrite 665
146% 655 MB/s
4K Read 32.2
4K Write 110
4K Mixed 44.2
163% 62 MB/s
DQ Read 748
DQ Write 562
DQ Mixed 664
494% 658 MB/s
329GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 617 528 596 571 586 579 MB/s
Read 879
Write 618
Mixed 391
SusWrite 579
138% 617 MB/s
4K Read 20.3
4K Write 111
4K Mixed 38.3
138% 56.4 MB/s
DQ Read 702
DQ Write 548
DQ Mixed 644
477% 631 MB/s
2,213 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,253,580 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 2,788 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 65%
Destroyer
Workstation
Workstation 10%
Tree trunk

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.

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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.
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  • - 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) July 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 i5-11400F $239Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $85SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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