Average Bench: 55.7% (727th of 980)

Based on 732 user benchmarks.  Model: SAMSUNG SSD PM851 2.5 7mm 128GB

Average average bench

The Samsung PM851 2.5 7mm 128GB averaged 44.2% 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 22.5MB/s
Avg. 4K-64Thread Read Speed 250MB/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 95.8MB/s
Avg. Sequential Write Speed 103MB/s
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Average Bench

(Based on 732 samples)
Min Avg Max
346 Read 448 498
28.8 Write 103 139
50.7 Mixed 138 213
26.5 SusWrite 95.8 133
42.8% 196 MB/s
Min Avg Max
13.8 4K Read 22.5 30.2
23.1 4K Write 52.9 96.5
7.69 4K Mixed 15.5 24.4
82% 30.3 MB/s
Min Avg Max
19.8 DQ Read 250 363
31.5 DQ Write 96.5 141
8.81 DQ Mixed 39 64.6
64.2% 128 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
82GB free (System drive)
Firmware: EXT07D0Q
SusWrite @10s intervals: 123 124 112 120 120 130 MB/s
Read 392
Write 130
Mixed 149
SusWrite 121
44% 198 MB/s
4K Read 21.9
4K Write 74.6
4K Mixed 24.3
104% 40.3 MB/s
DQ Read 356
DQ Write 139
DQ Mixed 61.9
95% 186 MB/s
101GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 126 132 132 131 134 133 MB/s
Read 441
Write 137
Mixed 149
SusWrite 131
47% 214 MB/s
4K Read 20.8
4K Write 57.6
4K Mixed 20.5
88% 33 MB/s
DQ Read 349
DQ Write 143
DQ Mixed 61
94% 184 MB/s
104GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 117 130 133 132 133 133 MB/s
Read 441
Write 135
Mixed 149
SusWrite 130
47% 214 MB/s
4K Read 19.1
4K Write 35.8
4K Mixed 19.9
73% 24.9 MB/s
DQ Read 354
DQ Write 137
DQ Mixed 65.6
96% 186 MB/s
88GB free (System drive)
Firmware: EXT08D0Q
SusWrite @10s intervals: 112 105 100 92 86 69 MB/s
Read 456
Write 122
Mixed 145
SusWrite 93.9
45% 204 MB/s
4K Read 20.5
4K Write 40.4
4K Mixed 19.6
78% 26.8 MB/s
DQ Read 359
DQ Write 122
DQ Mixed 59.8
91% 180 MB/s
13GB free (System drive)
Firmware: EXT07D0Q
SusWrite @10s intervals: 38 43 40 27 26 27 MB/s
Read 414
Write 47.5
Mixed 83.5
SusWrite 33.4
31% 145 MB/s
4K Read 16.1
4K Write 40
4K Mixed 23.6
76% 26.6 MB/s
DQ Read 29.4
DQ Write 35.7
DQ Mixed 24.5
21% 29.9 MB/s
732 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 11,465,103 SSDs tested.

Typical PM851 2.5 7mm 128GB Builds (Compare 2,052 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 102%
UFO
Desktop
Desktop 70%
Battleship
Workstation
Workstation 69%
Battle cruiser

System: Alienware Area-51 R2

EDIT WITH CUSTOM PC BUILDER Value: 90% - Outstanding Total price: $889

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) January 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

980 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 $360Nvidia GTX 1070 $320Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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