Average Bench: 50.7% (619th of 850)

Based on 205 user benchmarks.  Model: SAMSUNG SSD PM851 2.5 7mm 128GB

Average average bench

The Samsung PM851 2.5 7mm 128GB averaged 49.3% 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 Random Read Speed 21.1MB/s
Avg. Sequential Read Speed 462MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 2.5 7mm 128GB is 24.4%. 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. Sequential Write Speed 97.9MB/s
Avg. 4K-64Thread Mixed IO Speed 22MB/s
ADVERTISEMENT

Average Bench

(Based on 205 samples)
Min Avg Max
358 Read 462 497
26.1 Write 97.9 135
51.9 Mixed 148 214
50.8% 236 MB/s
Min Avg Max
15.6 4K Read 21.1 27.4
24.6 4K Write 46.2 76.3
7.43 4K Mixed 10.7 13.2
70.2% 26 MB/s
Min Avg Max
19.5 DQ Read 176 353
33.7 DQ Write 90.3 138
8.82 DQ Mixed 22 33.3
45.9% 96 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
54GB free
Firmware: EXT08D0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 484
Write 94.7
Mixed 174
54% 251 MB/s
4K Read 26.3
4K Write 56.5
4K Mixed 11.8
85% 31.5 MB/s
DQ Read 26.5
DQ Write 97.9
DQ Mixed 26.8
31% 50.4 MB/s
12GB free
Firmware: EXT08D0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 483
Write 55.3
Mixed 122
47% 220 MB/s
4K Read 24.1
4K Write 56.2
4K Mixed 11.5
81% 30.6 MB/s
DQ Read 26.4
DQ Write 63.2
DQ Mixed 28.3
26% 39.3 MB/s
62GB free
Firmware: EXT08D0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 479
Write 134
Mixed 186
58% 266 MB/s
4K Read 16.1
4K Write 29.6
4K Mixed 10.3
53% 18.7 MB/s
DQ Read 108
DQ Write 94.1
DQ Mixed 27.4
41% 76.6 MB/s
7GB free
Firmware: EXT08D0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 493
Write 43
Mixed 64.4
42% 200 MB/s
4K Read 21.5
4K Write 33.2
4K Mixed 7.35
60% 20.7 MB/s
DQ Read 275
DQ Write 47.9
DQ Mixed 24.1
53% 116 MB/s
205 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,049,338 SSDs tested.

Typical PM851 2.5 7mm 128GB Builds (Compare 826 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 72%
Battleship
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 64%
Destroyer

System: Alienware Area-51 R2

EDIT WITH CUSTOM PC BUILDER Value: 70% - Good Total price: $840

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) June 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

850 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 i7-7700K $309Nvidia GTX 1070 $382Samsung 850 Evo 250GB $100
Intel Core i5-7600K $231AMD RX 480 $608Samsung 850 Pro 256GB $135
AMD Ryzen 7 1700 $280Nvidia GTX 1060-6GB $248Samsung 850 Evo 500GB $167
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $133SanDisk Ultra Fit 32GB $13
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback