TEST
YOUR SSD
ADD TO PC
BUILD

Samsung

PM851 M.2 2280 128GB

▲ 500 ▼

Release date ≈ Q1 2015.

Average Bench: 55.1% (852nd of 1072)

Based on 1,404 user benchmarks.  Model: SAMSUNG SSD PM851 M.2 2280 128GB
Poor: 36%Average: 55.1% Great: 74%

Popular builds with this SSD

Average average bench

The Samsung PM851 M.2 2280 128GB averaged 44.9% 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 312MB/s
Avg. 4K Random Read Speed 21.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 M.2 2280 128GB is 37.4%. This is a relatively wide range which indicates that the Samsung PM851 M.2 2280 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 85.1MB/s
Avg. Sequential Write Speed 95.9MB/s
ADVERTISEMENT

Average Bench

(Based on 1,404 samples)
Rank 85255.1%
Min Avg Max
321 Read 423 494
29.4 Write 95.9 139
52.7 Mixed 116 163
26.1 SusWrite 85.1 133
39.1% 180 MB/s
Min Avg Max
10.5 4K Read 21.6 30.2
21.5 4K Write 45.5 86.2
11.1 4K Mixed 18.1 25.2
80.1% 28.4 MB/s
Min Avg Max
161 DQ Read 312 364
28.9 DQ Write 91 142
32 DQ Mixed 53.6 65.3
78.1% 152 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
17GB free
Firmware: EXT25D0Q
SusWrite @10s intervals: 125 123 124 123 124 123 MB/s
76.3% Very good
Read 468
Write 128
Mixed 151
SusWrite 124
48% 218 MB/s
4K Read 31.2
4K Write 108
4K Mixed 23.1
134% 54.1 MB/s
DQ Read 355
DQ Write 130
DQ Mixed 56.4
91% 180 MB/s
97GB free
Firmware: EXT25D0Q
SusWrite @10s intervals: 134 133 133 132 132 132 MB/s
71.4% Very good
Read 474
Write 135
Mixed 160
SusWrite 133
49% 225 MB/s
4K Read 25
4K Write 81.5
4K Mixed 23.5
111% 43.3 MB/s
DQ Read 361
DQ Write 139
DQ Mixed 63.2
96% 188 MB/s
119GB free
Firmware: EXT25D0Q
SusWrite @10s intervals: 133 133 133 131 128 122 MB/s
68.4% Good
Read 455
Write 130
Mixed 158
SusWrite 130
48% 218 MB/s
4K Read 24
4K Write 73.3
4K Mixed 22.7
104% 40 MB/s
DQ Read 361
DQ Write 138
DQ Mixed 65.1
97% 188 MB/s
11GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 31 27 30 34 27 25 MB/s
49.7% Average
Read 566
Write 27
Mixed 35.4
SusWrite 29
35% 164 MB/s
4K Read 24.3
4K Write 10.8
4K Mixed 15.8
63% 17 MB/s
DQ Read 255
DQ Write 29
DQ Mixed 36
53% 107 MB/s
14GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 31 27 25 24 25 24 MB/s
47.4% Average
Read 515
Write 32.7
Mixed 47.3
SusWrite 25.9
33% 155 MB/s
4K Read 14
4K Write 27.5
4K Mixed 15.9
56% 19.1 MB/s
DQ Read 321
DQ Write 33.6
DQ Mixed 40.5
64% 132 MB/s
1,404 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,718,932 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical PM851 M.2 2280 128GB Builds (Compare 455 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 7%
Tree trunk
Desktop
Desktop 44%
Speed boat
Workstation
Workstation 6%
Tree trunk

System: Dell XPS 13 9343

CPU
Core i5-5200UIntelBench 42%, 107,407 samples212x
Core i7-5500UIntelBench 46%, 73,655 samples185x
Core i7-5600UIntelBench 50%, 20,423 samples33x
GPU
HD 5500 (Mobile 0.95 GHz)IntelBench 4%, 231,498 samples455x
SSD
PM851 M.2 2280 128GBSamsungBench 55%, 1,404 samples1x
RAM
HMT851S6AMR6R-PB 2x4GBHynixBench 48%, 2,847 samples247x
8KTS51264HDZ-1G6E1 2x4GBElpidaBench 45%, 1,032 samples141x
4KTF25664HZ-1G6E1 2x2GBMicronBench 41%, 795 samples41x
EDIT WITH CUSTOM PC BUILDER

Popular PM851 M.2 2280 128GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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
Solid State Drive Rankings (Price vs Performance) April 2024 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]

ADVERTISEMENT

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

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 9 years

Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 870 Evo 250GB
vs Samsung 850 Pro 512GB
vs Samsung 850 Evo 250GB
vs HyperX Savage 240GB
vs Crucial MX300 275GB
vs Samsung 850 Evo 1TB

1072 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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback