Samsung

PM851 2.5 7m 128GB

PM851 2.5 7m 128GB
BENCHMARKS (150)
MKT (0%)
BUILDS
(0)

Effective Speed -88%Effective Speed -88%Average Score -172%Read -6%, Write -365%, 4K Read -52%, 4K Write -80%, Mixed -194%, 4K Mixed -241%, SusWrite -262%Peak Score -112%Read -2%, Write -249%, 4K Read -42%, 4K Write -41%, Mixed -102%, 4K Mixed -158%, SusWrite -189%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves -194%DQ Read -1%, DQ Write -156%, DQ Mixed -421%, ADQ Read -21%, ADQ Write -251%, ADQ Mixed -652%, Age -13%, AS-SSD Total -37%

Average Bench: 52.3% (877^th of 1072)

Based on 150 user benchmarks. Model: SAMSUNG SSD PM851 2.5 7m

Poor: 32%Average: 52.3% Great: 69%

Popular builds with this SSD

Average average bench

The Samsung PM851 2.5 7m 128GB averaged 47.6% 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 22.6MB/s

Avg. 4K-64Thread Read Speed 269MB/s

See where your SSD ranks →

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 2.5 7m 128GB is 37%. This is a relatively wide range which indicates that the Samsung PM851 2.5 7m 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 81.9MB/s

Avg. Sequential Write Speed 87.2MB/s

Average Bench

(Based on 150 samples)

Rank 87752.3%

Min	Avg	Max
305	Read 430	496
22.3	Write 87.2	139
35.8	Mixed 122	210
21.5	SusWrite 81.9	134
39.1% 180 MB/s

Min	Avg	Max
10.7	4K Read 22.6	30.2
19.3	4K Write 48.6	86.6
4.92	4K Mixed 13.2	22.6
76.9% 28.1 MB/s

Min	Avg	Max
24	DQ Read 269	364
24.5	DQ Write 82.4	140
10.4	DQ Mixed 34.6	63.6
62.4% 129 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

NLD-User, 16 months ago.

49GB free

Firmware: EXT0

SusWrite @10s intervals: 136 136 129 103 90 83 MB/s

70% Very good

Write 140

Mixed 167

SusWrite 113

48% 222 MB/s

4K Read 33.2

4K Write 71.9

4K Mixed 26.3

122% 43.8 MB/s

DQ Read 219

DQ Write 140

DQ Mixed 61.1

77% 140 MB/s

USA-User, 3 months ago.

43GB free (System drive)

Firmware: EXT08D0Q

SusWrite @10s intervals: 74 84 69 78 77 75 MB/s

48.9% Average

Write 95.4

Mixed 93

SusWrite 76.5

36% 167 MB/s

4K Read 18.1

4K Write 36.3

4K Mixed 17.2

69% 23.9 MB/s

DQ Read 252

DQ Write 72.6

DQ Mixed 42.5

63% 122 MB/s

FRA-User, 17 months ago.

16GB free

Firmware: 4101

SusWrite @10s intervals: 133 132 132 131 131 131 MB/s

45.1% Average

Write 136

Mixed 171

SusWrite 132

42% 191 MB/s

4K Read 15.4

4K Write 26.9

4K Mixed 16

58% 19.4 MB/s

DQ Read 144

DQ Write 135

DQ Mixed 53.9

64% 111 MB/s

150 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,697,178 SSDs tested

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

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CPU

GPU

SSD

HDD

RAM

MBD

Typical PM851 2.5 7m 128GB Builds (Compare 4,057 builds) See popular component choices, score breakdowns and rankings

Gaming 9%

Tree trunk

Desktop 61%

Destroyer

Workstation 8%

Tree trunk

Motherboard: Dell OptiPlex 7020

CPU
Core i5-4590Intel $188Bench 63%, 151,366 samples	1,722x
Core i7-4790Intel $135Bench 71%, 255,027 samples	1,082x
Core i7-4770Intel $75Bench 70%, 176,321 samples	285x

GPU
HD 4600 (Desktop 1.25 GHz)Intel $15Bench 3%, 230,189 samples	1,373x
GT 1030NvidiaBench 14%, 185,384 samples	309x
GTX 1050-TiNvidia $59Bench 29%, 946,701 samples	258x

SSD
PM851 2.5 7m 128GBSamsungBench 52%, 150 samples	1x

RAM
2x8GBUnknownBench 64%, 236,291 samples	102x
4x8GBUnknownBench 70%, 41,916 samples	83x
HMT451U6BFR8C-PB 2x4GBHynixBench 53%, 7,217 samples	76x

EDIT WITH CUSTOM PC BUILDER

Value: 69% - Good

Total price: $203

Popular PM851 2.5 7m 128GB compatible motherboards:

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

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CPU

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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) 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]

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.

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 »

CPU	GPU	SSD
Intel Core i5-13600K $273	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $15	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

Samsung

PM851 2.5 7m 128GB

Average Bench: 52.3% (877^th of 1072)

Popular builds with this SSD

Average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

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Motherboard: Dell OptiPlex 7020

Popular PM851 2.5 7m 128GB compatible motherboards:

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Samsung

PM851 2.5 7m 128GB

Average Bench: 52.3% (877th of 1072)

Popular builds with this SSD

Average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

Motherboard: Dell OptiPlex 7020

Popular PM851 2.5 7m 128GB compatible motherboards:

UserBenchmark of the month

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Group Test Results

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Average Bench: 52.3% (877^th of 1072)