Average Bench: 59.7% (716th of 1003)

Based on 866 user benchmarks.  Model: SAMSUNG SSD PM851 2.5 7mm 128GB

Average average bench

The Samsung PM851 2.5 7mm 128GB averaged 40.3% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K-64Thread Read Speed 317MB/s
Avg. 4K Random Read Speed 23MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 2.5 7mm 128GB is 33.4%. This is a relatively narrow range which indicates that the Samsung PM851 2.5 7mm 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 97.9MB/s
Avg. Sequential Write Speed 108MB/s
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Average Bench

(Based on 866 samples)
Min Avg Max
340 Read 435 498
36.7 Write 108 139
59 Mixed 128 163
26.4 SusWrite 97.9 134
41.8% 192 MB/s
Min Avg Max
14.1 4K Read 23 30.9
23.5 4K Write 55.7 100
12.8 4K Mixed 20 25.5
90% 32.9 MB/s
Min Avg Max
148 DQ Read 317 364
31.7 DQ Write 104 142
29 DQ Mixed 55.5 65.4
81.6% 159 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
119GB free
Firmware: EXT08D0Q
SusWrite @10s intervals: 120 119 119 119 119 119 MB/s
Read 491
Write 123
Mixed 148
SusWrite 119
48% 220 MB/s
4K Read 34.2
4K Write 82.3
4K Mixed 24.8
127% 47.1 MB/s
DQ Read 353
DQ Write 126
DQ Mixed 57.4
90% 179 MB/s
88GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 132 130 124 134 134 134 MB/s
Read 463
Write 138
Mixed 158
SusWrite 131
49% 223 MB/s
4K Read 28.1
4K Write 75.2
4K Mixed 22.7
112% 42 MB/s
DQ Read 360
DQ Write 140
DQ Mixed 63.2
96% 188 MB/s
24GB free (System drive)
Firmware: 8D0Q
SusWrite @10s intervals: 35 46 65 87 76 28 MB/s
Read 388
Write 54.3
Mixed 80.3
SusWrite 56.1
31% 145 MB/s
4K Read 25.1
4K Write 34.1
4K Mixed 21.9
84% 27 MB/s
DQ Read 360
DQ Write 40.8
DQ Mixed 39.6
70% 147 MB/s
866 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,197,672 SSDs tested.

Typical PM851 2.5 7mm 128GB Builds (Compare 2,574 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 101%
UFO
Desktop
Desktop 70%
Battleship
Workstation
Workstation 69%
Battle cruiser

System: Alienware Area-51 R2

EDIT WITH CUSTOM PC BUILDER Value: 87% - Excellent Total price: $919

Popular PM851 2.5 7mm 128GB 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.
  • - 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) June 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 $335Samsung 850 Evo 250GB $101
AMD Ryzen 5 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Ultra Fit 32GB $12
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