Samsung

CM871a 2.5 7mm 256GB

CM871a 2.5 7mm 256GB
BENCHMARKS (62)
MKT (0%)
BUILDS
(0)

Effective Speed -16%Effective Speed -16%Average Score -22%Read -3%, Write -2%, 4K Read -12%, 4K Write -18%, Mixed -14%, 4K Mixed -20%, SusWrite -85%Peak Score -7%Read 2%, Write 2%, 4K Read -1%, 4K Write -6%, Mixed 19%, 4K Mixed -6%, SusWrite -55%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves -4%DQ Read 5%, DQ Write -3%, DQ Mixed 1%, ADQ Read -12%, ADQ Write -11%, ADQ Mixed -18%, Age 4%, AS-SSD Total 1%

Average Bench: 84.6% (410^th of 1072)

Based on 62 user benchmarks. Model: SAMSUNG SSD CM871a 2.5 7mm 256GB

Poor: 56%Average: 84.6% Great: 106%

Popular builds with this SSD

Very good average bench

The Samsung CM871a 2.5 7mm 256GB averaged just 15.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung CM871a 2.5 7mm 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 221MB/s

Avg. 4K Random Mixed IO Speed 37.6MB/s

See where your SSD ranks →

Average consistency

The range of scores (95th - 5th percentile) for the Samsung CM871a 2.5 7mm 256GB is 49.8%. This is a relatively wide range which indicates that the Samsung CM871a 2.5 7mm 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 160MB/s

Avg. Sequential Mixed IO Speed 314MB/s

Average Bench

(Based on 62 samples)

Rank 41084.6%

Min	Avg	Max
338	Read 443	517
174	Write 396	494
125	Mixed 314	503
57.5	SusWrite 160	250
73.4% 328 MB/s

Min	Avg	Max
13.7	4K Read 30.7	42.4
36.1	4K Write 74	115
15.9	4K Mixed 37.6	54.9
134% 47.4 MB/s

Min	Avg	Max
28.5	DQ Read 291	386
85.9	DQ Write 261	348
18.9	DQ Mixed 221	333
181% 258 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

GBR-User, 5 months ago.

48GB free (System drive)

Firmware: MAT02D0Q

SusWrite @10s intervals: 283 211 208 185 120 114 MB/s

96% Outstanding

Write 393

Mixed 242

SusWrite 187

68% 302 MB/s

4K Read 37.1

4K Write 92.1

4K Mixed 50.1

169% 59.8 MB/s

DQ Read 385

DQ Write 360

DQ Mixed 337

263% 361 MB/s

GBR-User, 5 months ago.

26GB free (System drive)

Firmware: MAT02D0Q

SusWrite @10s intervals: 276 136 87 87 83 73 MB/s

88.4% Excellent

Write 368

Mixed 246

SusWrite 124

64% 286 MB/s

4K Read 33.4

4K Write 86.2

4K Mixed 45.9

155% 55.2 MB/s

DQ Read 387

DQ Write 348

DQ Mixed 344

264% 360 MB/s

GBR-User, 5 months ago.

26GB free (System drive)

Firmware: MAT02D0Q

SusWrite @10s intervals: 281 184 131 62 65 69 MB/s

87.9% Excellent

Write 354

Mixed 260

SusWrite 132

62% 279 MB/s

4K Read 32.3

4K Write 84.5

4K Mixed 48

155% 54.9 MB/s

DQ Read 377

DQ Write 361

DQ Mixed 320

254% 353 MB/s

GBR-User, 5 months ago.

50GB free (System drive)

Firmware: MAT02D0Q

SusWrite @10s intervals: 170 158 108 97 116 123 MB/s

69.7% Good

Write 250

Mixed 256

SusWrite 129

54% 239 MB/s

4K Read 26.7

4K Write 60.2

4K Mixed 28.8

109% 38.6 MB/s

DQ Read 358

DQ Write 343

DQ Mixed 299

239% 333 MB/s

62 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,732,898 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 CM871a 2.5 7mm 256GB Builds (Compare 5,174 builds) See popular component choices, score breakdowns and rankings

Gaming 11%

Tree trunk

Desktop 68%

Battle cruiser

Workstation 10%

Tree trunk

Motherboard: Dell OptiPlex 7040

CPU
Core i7-6700Intel $180Bench 72%, 282,363 samples	2,287x
Core i5-6500Intel $67Bench 64%, 241,476 samples	1,698x
Core i5-6500TIntelBench 61%, 9,313 samples	357x

GPU
HD 530 (Desktop Skylake)IntelBench 5%, 188,220 samples	3,245x
GT 1030NvidiaBench 14%, 185,384 samples	231x
GTX 1050-TiNvidia $59Bench 29%, 946,701 samples	196x

SSD
CM871a 2.5 7mm 256GBSamsungBench 85%, 62 samples	1x

RAM
HMA451U6AFR8N-TF 2x4GBUnknownBench 69%, 1,440 samples	341x
HMA41GU6AFR8N-TF 2x8GBUnknownBench 72%, 2,345 samples	317x
HMA81GU6AFR8N-UH 2x8GBUnknownBench 73%, 3,256 samples	153x

EDIT WITH CUSTOM PC BUILDER

Value: 82% - Excellent

Total price: $180

Popular CM871a 2.5 7mm 256GB 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.

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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 $269	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 $178	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

CM871a 2.5 7mm 256GB

Average Bench: 84.6% (410^th of 1072)

Popular builds with this SSD

Very good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

Motherboard: Dell OptiPlex 7040

Popular CM871a 2.5 7mm 256GB compatible motherboards:

UserBenchmark of the month

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Best User Rated

Samsung

CM871a 2.5 7mm 256GB

Average Bench: 84.6% (410th of 1072)

Popular builds with this SSD

Very good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

Motherboard: Dell OptiPlex 7040

Popular CM871a 2.5 7mm 256GB compatible motherboards:

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: 84.6% (410^th of 1072)