Average Bench: 155% (122nd of 1037)

Based on 2,011 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 55.3% 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 820MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 102%. 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 457MB/s
Avg. Sustained Write Speed 612MB/s
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Average Bench

(Based on 2,011 samples)
Min Avg Max
683 Read 972 1115
250 Write 641 836
312 Mixed 457 544
131 SusWrite 612 914
150% 670 MB/s
Min Avg Max
20 4K Read 38.2 41
37.8 4K Write 106 152
17.4 4K Mixed 37.3 51.2
162% 60.5 MB/s
Min Avg Max
242 DQ Read 820 1,048
161 DQ Write 575 826
184 DQ Mixed 606 751
477% 667 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
437GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 665 637 622 628 605 598 MB/s
Read 960
Write 650
Mixed 491
SusWrite 626
152% 682 MB/s
4K Read 38.3
4K Write 168
4K Mixed 50.4
212% 85.7 MB/s
DQ Read 1022
DQ Write 580
DQ Mixed 730
562% 778 MB/s
378GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 535 701 715 786 769 718 MB/s
Read 1,036
Write 609
Mixed 554
SusWrite 704
162% 726 MB/s
4K Read 35.1
4K Write 98.4
4K Mixed 44.7
162% 59.4 MB/s
DQ Read 638
DQ Write 532
DQ Mixed 599
445% 590 MB/s
97GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 303 275 243 230 221 208 MB/s
Read 1,076
Write 369
Mixed 445
SusWrite 247
117% 534 MB/s
4K Read 38.9
4K Write 134
4K Mixed 43
185% 72 MB/s
DQ Read 1,049
DQ Write 504
DQ Mixed 567
476% 707 MB/s
193GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 495 361 354 372 338 243 MB/s
Read 599
Write 512
Mixed 400
SusWrite 360
105% 468 MB/s
4K Read 20.2
4K Write 48.6
4K Mixed 19.4
81% 29.4 MB/s
DQ Read 300
DQ Write 300
DQ Mixed 322
236% 307 MB/s
2,011 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,801,235 SSDs tested.

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 1,461 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

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  • - CPU tests include: integer, floating and string.
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  • - Reports are generated and presented on userbenchmark.com.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) September 2020 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

1037 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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $290Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $42
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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