Average Bench: 57.2% (728th of 992)

Based on 806 user benchmarks.  Model: SAMSUNG SSD PM851 2.5 7mm 128GB

Average average bench

The Samsung PM851 2.5 7mm 128GB averaged 42.7% 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 Random Read Speed 22.6MB/s
Avg. 4K-64Thread Read Speed 276MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 2.5 7mm 128GB is 33.5%. 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 97.8MB/s
Avg. Sequential Write Speed 106MB/s
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Average Bench

(Based on 806 samples)
Min Avg Max
347 Read 444 497
31 Write 106 139
54.6 Mixed 136 211
26.8 SusWrite 97.8 134
42.7% 196 MB/s
Min Avg Max
14.2 4K Read 22.6 30.4
23.5 4K Write 53.8 94.2
8.44 4K Mixed 17.2 24.5
84.8% 31.2 MB/s
Min Avg Max
20.6 DQ Read 276 364
31.9 DQ Write 100 141
9.09 DQ Mixed 45.3 65.1
71% 140 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
97GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 124 127 131 132 132 132 MB/s
Read 474
Write 138
Mixed 153
SusWrite 130
49% 224 MB/s
4K Read 27.7
4K Write 76.6
4K Mixed 23.4
112% 42.6 MB/s
DQ Read 361
DQ Write 140
DQ Mixed 65.3
97% 189 MB/s
68GB free
Firmware: EXT08D0Q
SusWrite @10s intervals: 136 135 134 135 135 135 MB/s
Read 466
Write 137
Mixed 156
SusWrite 135
49% 224 MB/s
4K Read 22.7
4K Write 60
4K Mixed 20.4
92% 34.4 MB/s
DQ Read 357
DQ Write 138
DQ Mixed 62.4
95% 186 MB/s
32GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 90 94 100 102 96 77 MB/s
Read 470
Write 122
Mixed 149
SusWrite 93.1
45% 208 MB/s
4K Read 20.7
4K Write 40.9
4K Mixed 19.3
78% 27 MB/s
DQ Read 354
DQ Write 120
DQ Mixed 59.7
91% 178 MB/s
90GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 66 72 85 85 84 86 MB/s
Read 377
Write 135
Mixed 142
SusWrite 79.7
40% 184 MB/s
4K Read 23.4
4K Write 52.9
4K Mixed 19.5
88% 31.9 MB/s
DQ Read 29.5
DQ Write 113
DQ Mixed 25.3
33% 56 MB/s
13GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 49 39 36 32 33 41 MB/s
Read 363
Write 91.5
Mixed 103
SusWrite 38.4
32% 149 MB/s
4K Read 17.7
4K Write 42.4
4K Mixed 20.2
75% 26.8 MB/s
DQ Read 354
DQ Write 67.1
DQ Mixed 49.2
78% 157 MB/s
7GB free (System drive)
Firmware: EXT07D0Q
SusWrite @10s intervals: 33 20 27 38 33 31 MB/s
Read 405
Write 34.5
Mixed 58.3
SusWrite 30.3
28% 132 MB/s
4K Read 22.4
4K Write 22.7
4K Mixed 16.4
67% 20.5 MB/s
DQ Read 361
DQ Write 26
DQ Mixed 31.7
64% 139 MB/s
806 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 12,966,448 SSDs tested.

Typical PM851 2.5 7mm 128GB Builds (Compare 2,271 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 101%
UFO
Desktop
Desktop 71%
Battleship
Workstation
Workstation 70%
Battle cruiser

System: Alienware Area-51 R2

EDIT WITH CUSTOM PC BUILDER Value: 88% - 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) March 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

992 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 $370Nvidia GTX 1070 $364Samsung 850 Evo 250GB $75
AMD Ryzen 5 1600 $120Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $761SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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