Average Bench: 54% (729th of 964)

Based on 619 user benchmarks.  Model: SAMSUNG SSD PM851 2.5 7mm 128GB

Average average bench

The Samsung PM851 2.5 7mm 128GB averaged 46.0% 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 22.2MB/s
Avg. Sequential Read Speed 452MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 2.5 7mm 128GB is 34%. 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 93.2MB/s
Avg. Sequential Write Speed 100MB/s
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Average Bench

(Based on 619 samples)
Min Avg Max
349 Read 452 498
27.8 Write 100 137
47.9 Mixed 139 214
26.6 SusWrite 93.2 134
42.7% 196 MB/s
Min Avg Max
13.8 4K Read 22.2 29.7
21.9 4K Write 50.8 93.7
7.05 4K Mixed 13.9 23.8
78.3% 29 MB/s
Min Avg Max
19.5 DQ Read 228 362
32 DQ Write 93.7 140
8.67 DQ Mixed 33.3 63.7
58.4% 118 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
109GB free
Firmware: EXT08D0Q
SusWrite @10s intervals: 132 132 132 132 132 132 MB/s
Read 362
Write 131
Mixed 151
SusWrite 132
43% 194 MB/s
4K Read 37.5
4K Write 108
4K Mixed 25.5
146% 56.9 MB/s
DQ Read 359
DQ Write 137
DQ Mixed 56.6
92% 184 MB/s
85GB free (System drive)
Firmware: EXT07D0Q
SusWrite @10s intervals: 120 123 126 121 126 127 MB/s
Read 432
Write 122
Mixed 138
SusWrite 124
45% 204 MB/s
4K Read 25.8
4K Write 79.9
4K Mixed 23.7
112% 43.1 MB/s
DQ Read 361
DQ Write 125
DQ Mixed 62.5
94% 183 MB/s
91GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 114 107 115 129 114 115 MB/s
Read 462
Write 133
Mixed 150
SusWrite 115
47% 215 MB/s
4K Read 19.5
4K Write 46.2
4K Mixed 18.9
78% 28.2 MB/s
DQ Read 359
DQ Write 135
DQ Mixed 62.5
95% 185 MB/s
28GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 48 60 65 35 35 30 MB/s
Read 419
Write 59.8
Mixed 89.9
SusWrite 45.4
33% 153 MB/s
4K Read 25.3
4K Write 36.4
4K Mixed 19.5
83% 27.1 MB/s
DQ Read 351
DQ Write 39.7
DQ Mixed 54.5
76% 148 MB/s
619 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 9,664,317 SSDs tested.

Typical PM851 2.5 7mm 128GB Builds (Compare 1,773 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 101%
UFO
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 70%
Battleship

System: Alienware Area-51 R2

EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $851

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) November 2018 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

964 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 $359Nvidia GTX 1070 $340Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $234Samsung 850 Evo 500GB $97
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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