Samsung

PM851 M.2 2280 128GB

PM851 M.2 2280 128GB
BENCHMARKS (1,264)
MKT (0%)
BUILDS
(0)

Effective Speed -79%Effective Speed -79%Average Score -157%Read -9%, Write -326%, 4K Read -59%, 4K Write -90%, Mixed -216%, 4K Mixed -147%, SusWrite -252%Peak Score -117%Read -3%, Write -249%, 4K Read -42%, 4K Write -38%, Mixed -161%, 4K Mixed -134%, SusWrite -190%Value & Sentiment User Rating -13%, Market Share -∞%Nice To Haves -154%DQ Read -1%, DQ Write -154%, DQ Mixed -407%, ADQ Read -4%, ADQ Write -216%, ADQ Mixed -387%, Age -26%, AS-SSD Total -37%

Average Bench: 55% (838^th of 1058)

Based on 1,264 user benchmarks. Model: SAMSUNG SSD PM851 M.2 2280 128GB

Poor: 36%Average: 55% Great: 73%

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 310MB/s

Avg. 4K Random Read Speed 21.6MB/s

See where your SSD ranks →

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 M.2 2280 128GB is 36.5%. 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 84.4MB/s

Avg. Sequential Write Speed 94.7MB/s

Average Bench

(Based on 1,264 samples)

Rank 83855%

Min	Avg	Max
318	Read 424	493
29	Write 94.7	139
50.3	Mixed 114	162
25.7	SusWrite 84.4	133
39% 179 MB/s

Min	Avg	Max
10.4	4K Read 21.6	30.2
22	4K Write 45.4	86.5
10.9	4K Mixed 18.2	24.9
80.1% 28.4 MB/s

Min	Avg	Max
160	DQ Read 310	365
28.6	DQ Write 90.2	141
29.1	DQ Mixed 52.9	65.2
77.3% 151 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

MEX-User, 3 days ago.

79GB free

Firmware: EXT25D0Q

SusWrite @10s intervals: 118 118 118 117 118 118 MB/s

67.1% Good

Write 122

Mixed 142

SusWrite 118

44% 200 MB/s

4K Read 30.5

4K Write 61.9

4K Mixed 23.7

109% 38.7 MB/s

DQ Read 346

DQ Write 124

DQ Mixed 55.8

88% 175 MB/s

CAN-User, 6 days ago.

12GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 81 60 52 40 32 31 MB/s

59.2% Above average

Write 102

Mixed 124

SusWrite 49.3

40% 184 MB/s

4K Read 26.9

4K Write 61.2

4K Mixed 20.3

99% 36.1 MB/s

DQ Read 280

DQ Write 86.5

DQ Mixed 58

75% 141 MB/s

CAN-User, 3 days ago.

25GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 87 64 70 78 63 66 MB/s

56.5% Above average

Write 90.5

Mixed 113

SusWrite 71.3

40% 183 MB/s

4K Read 23.3

4K Write 40.5

4K Mixed 19.3

82% 27.7 MB/s

DQ Read 354

DQ Write 67

DQ Mixed 56.7

81% 159 MB/s

USA-User, 12 days ago.

95GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 115 116 116 115 117 117 MB/s

55.1% Above average

Write 122

Mixed 138

SusWrite 116

43% 197 MB/s

4K Read 14.9

4K Write 52.1

4K Mixed 15.1

70% 27.4 MB/s

DQ Read 354

DQ Write 125

DQ Mixed 53.6

88% 177 MB/s

USA-User, 7 days ago.

43GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 106 107 101 90 100 99 MB/s

52.2% Above average

Write 114

Mixed 136

SusWrite 100

41% 186 MB/s

4K Read 15.9

4K Write 36.3

4K Mixed 17.3

66% 23.2 MB/s

DQ Read 338

DQ Write 128

DQ Mixed 61.3

91% 176 MB/s

CAN-User, 14 days ago.

51GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 36 41 39 27 27 32 MB/s

48% Average

Write 41.2

Mixed 64.1

SusWrite 33.7

29% 136 MB/s

4K Read 22.4

4K Write 29.4

4K Mixed 20.4

76% 24.1 MB/s

DQ Read 266

DQ Write 27.2

DQ Mixed 42.3

57% 112 MB/s

AUS-User, 3 days ago.

75GB free (System drive)

Firmware: EXT25D0Q

SusWrite @10s intervals: 129 127 104 121 129 128 MB/s

38.8% Below average

Write 132

Mixed 138

SusWrite 123

41% 187 MB/s

4K Read 10

4K Write 17.4

4K Mixed 11.3

39% 12.9 MB/s

DQ Read 129

DQ Write 95.1

DQ Mixed 53.1

56% 92.4 MB/s

1,264 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,300,380 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 824 builds) See popular component choices, score breakdowns and rankings.

Gaming 7%

Tree trunk

Desktop 60%

Destroyer

Workstation 7%

Tree trunk

System: Alienware 15

CPU
Core i7-4710HQIntelBench 65%, 71,204 samples	382x
Core i7-4720HQIntelBench 67%, 75,729 samples	299x
Core i5-4210HIntelBench 57%, 10,825 samples	133x

GPU
HD 4600 (Mobile 1.15 GHz)IntelBench 3%, 246,864 samples	439x
GTX 970MNvidiaBench 32%, 20,881 samples	192x
GTX 980MNvidiaBench 41%, 14,450 samples	89x

SSD
PM851 M.2 2280 128GBSamsungBench 55%, 1,264 samples	86x

RAM
HMT41GS6BFR8A-PB 2x8GBHynixBench 52%, 33,158 samples	167x
HMT451S6BFR8A-PB 2x4GBHynixBench 48%, 37,112 samples	105x
KN2M64-ETB 2x8GBKingstonBench 51%, 2,649 samples	70x

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 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

Gaming

Desktop

ProGaming

CPU

GPU

SSD

HDD

RAM

USB

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) September 2021 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]

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.

1058 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 »

CPU	GPU	SSD
Intel Core i5-11600K $270	Nvidia RTX 3060-Ti $400	Crucial MX500 250GB $45
Intel Core i5-11400F $260	Nvidia RTX 3070 $500	Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394	Nvidia GTX 1660S (Super) $240	Samsung 850 Evo 120GB $183

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $40	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80	G.SKILL Trident Z DDR4 3200 C14 4x16GB $649	SanDisk Ultra Fit 32GB $16

Samsung

PM851 M.2 2280 128GB

Average Bench: 55% (838^th of 1058)

Popular builds with this SSD

Average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Alienware 15

Popular PM851 M.2 2280 128GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Samsung

PM851 M.2 2280 128GB

Average Bench: 55% (838th of 1058)

Popular builds with this SSD

Average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Alienware 15

Popular PM851 M.2 2280 128GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Feedback

Average Bench: 55% (838^th of 1058)