Samsung

PM871a 2.5 7mm 256GB

PM871a 2.5 7mm 256GB
BENCHMARKS (636)
MKT (0%)
BUILDS
(0)

Effective Speed -3%Effective Speed -3%Average Score -4%Read -3%, Write -0%, 4K Read 1%, 4K Write -15%, Mixed -2%, 4K Mixed 0%, SusWrite -12%Peak Score -2%Read -1%, Write -1%, 4K Read 7%, 4K Write -6%, Mixed -4%, 4K Mixed 5%, SusWrite -17%Value & Sentiment -868%User Rating -14%, Market Share -1,722%Nice To Haves +7% DQ Read 5%, DQ Write 1%, DQ Mixed 10%, ADQ Read 6%, ADQ Write 5%, ADQ Mixed 19%, Age 8%, AS-SSD Total 2%

Average Bench: 95.3% (277^th of 1072)

Based on 636 user benchmarks. Model: SAMSUNG SSD PM871a 2.5 7mm 256GB

Poor: 64%Average: 95.3% Great: 119%

Popular builds with this SSD

Excellent average bench

The Samsung PM871a 2.5 7mm 256GB averaged just 4.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM871a 2.5 7mm 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 309MB/s

Avg. 4K Random Mixed IO Speed 45.1MB/s

See where your SSD ranks →

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung PM871a 2.5 7mm 256GB is 54.4%. This is a relatively wide range which indicates that the Samsung PM871a 2.5 7mm 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 265MB/s

Avg. Sequential Mixed IO Speed 353MB/s

Average Bench

(Based on 636 samples)

Rank 27795.3%

Min	Avg	Max
350	Read 445	502
262	Write 404	482
250	Mixed 353	405
131	SusWrite 265	332
82.3% 367 MB/s

Min	Avg	Max
17.7	4K Read 34.5	45.9
36.7	4K Write 76.4	115
21.6	4K Mixed 45.1	61.1
151% 52 MB/s

Min	Avg	Max
179	DQ Read 346	387
137	DQ Write 303	361
132	DQ Mixed 309	365
236% 319 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

DEU-User, 1 month ago.

181GB free

Firmware: MAV02D0Q

SusWrite @10s intervals: 411 325 324 324 323 322 MB/s

125% Outstanding

Write 487

Mixed 415

SusWrite 338

98% 437 MB/s

4K Read 46.2

4K Write 128

4K Mixed 64

220% 79.6 MB/s

DQ Read 374

DQ Write 322

DQ Mixed 338

256% 344 MB/s

NOR-User, 1 month ago.

226GB free

Firmware: MAV02D0Q

SusWrite @10s intervals: 349 299 327 327 327 327 MB/s

111% Outstanding

Write 464

Mixed 398

SusWrite 326

94% 420 MB/s

4K Read 40.1

4K Write 94.4

4K Mixed 53

179% 62.5 MB/s

DQ Read 373

DQ Write 335

DQ Mixed 349

263% 352 MB/s

NOR-User, 1 month ago.

226GB free

Firmware: MAV02D0Q

SusWrite @10s intervals: 310 328 326 328 327 326 MB/s

110% Outstanding

Write 474

Mixed 395

SusWrite 324

95% 423 MB/s

4K Read 40

4K Write 88

4K Mixed 52.4

174% 60.1 MB/s

DQ Read 374

DQ Write 337

DQ Mixed 349

264% 353 MB/s

CAN-User, 6 days ago.

193GB free (System drive)

Firmware: MAV02D0Q

SusWrite @10s intervals: 178 320 322 322 322 322 MB/s

105% Outstanding

Write 456

Mixed 387

SusWrite 298

89% 395 MB/s

4K Read 38.3

4K Write 91

4K Mixed 53.5

175% 60.9 MB/s

DQ Read 316

DQ Write 347

DQ Mixed 355

261% 339 MB/s

CZE-User, 10 days ago.

119GB free (System drive)

Firmware: MAV02D0Q

SusWrite @10s intervals: 348 245 245 243 245 239 MB/s

97.6% Outstanding

Write 451

Mixed 387

SusWrite 261

89% 395 MB/s

4K Read 36.8

4K Write 72.7

4K Mixed 46.2

154% 51.9 MB/s

DQ Read 363

DQ Write 290

DQ Mixed 317

240% 323 MB/s

USA-User, 1 month ago.

185GB free (System drive)

Firmware: MAV02D0Q

SusWrite @10s intervals: 362 311 313 317 314 316 MB/s

90.9% Outstanding

Write 394

Mixed 341

SusWrite 322

86% 381 MB/s

4K Read 25.3

4K Write 61.7

4K Mixed 39.2

121% 42.1 MB/s

DQ Read 352

DQ Write 294

DQ Mixed 319

240% 322 MB/s

DEU-User, 10 days ago.

33GB free (System drive)

Firmware: MAV02D0Q

SusWrite @10s intervals: 252 93 84 88 84 83 MB/s

87.9% Excellent

Write 418

Mixed 358

SusWrite 114

76% 339 MB/s

4K Read 33.5

4K Write 69.1

4K Mixed 46.7

147% 49.8 MB/s

DQ Read 381

DQ Write 338

DQ Mixed 359

269% 359 MB/s

POL-User, 26 days ago.

78GB free (System drive)

Firmware: MAV02D0Q

SusWrite @10s intervals: 151 200 162 144 142 121 MB/s

63.3% Good

Write 333

Mixed 242

SusWrite 154

62% 280 MB/s

4K Read 21.1

4K Write 43.8

4K Mixed 24.3

86% 29.7 MB/s

DQ Read 353

DQ Write 171

DQ Mixed 181

156% 235 MB/s

636 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,695,394 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 PM871a 2.5 7mm 256GB Builds (Compare 783 builds) See popular component choices, score breakdowns and rankings

Gaming 6%

Tree trunk

Desktop 49%

Yacht

Workstation 6%

Tree trunk

System: Dell Inspiron 13-5378

CPU
Core i5-7200UIntelBench 45%, 205,332 samples	352x
Core i7-7500UIntelBench 48%, 139,101 samples	235x
Core i3-7100UIntelBench 43%, 37,239 samples	144x

GPU
HD 620 (Mobile Kaby Lake)IntelBench 5%, 387,149 samples	757x
HD Graphics 610IntelBench 2%, 9,913 samples	26x

SSD
PM871a 2.5 7mm 256GBSamsungBench 95%, 636 samples	1x

RAM
HMA81GS6AFR8N-UH 1x8GBUnknownBench 37%, 41,676 samples	138x
8ATF1G64HZ-2G3B1 1x8GBUnknownBench 37%, 4,524 samples	99x
HMA851S6AFR6N-UH 1x4GBUnknownBench 33%, 8,561 samples	40x

EDIT WITH CUSTOM PC BUILDER

Popular PM871a 2.5 7mm 256GB 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.

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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
- 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 $274	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 $183	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

PM871a 2.5 7mm 256GB

Average Bench: 95.3% (277^th of 1072)

Popular builds with this SSD

Excellent average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 13-5378

Popular PM871a 2.5 7mm 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

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Best User Rated

Samsung

PM871a 2.5 7mm 256GB

Average Bench: 95.3% (277th of 1072)

Popular builds with this SSD

Excellent average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 13-5378

Popular PM871a 2.5 7mm 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 95.3% (277^th of 1072)