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Samsung

PM871 mSATA 256GB

▲ 501 ▼

Release date ≈ Q3 2015.

Average Bench: 78.7% (449th of 1012)

Based on 950 user benchmarks.  Model: SAMSUNG SSD PM871 mSATA 256GB
Poor: 58%Average: 78.7% Great: 96%

Popular builds with this SSD

Good average bench

The Samsung PM871 mSATA 256GB averaged 21.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM871 mSATA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 218MB/s
Avg. 4K-64Thread Read Speed 323MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM871 mSATA 256GB is 37.9%. This is a relatively wide range which indicates that the Samsung PM871 mSATA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 231MB/s
Avg. Sustained Write Speed 249MB/s
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Average Bench

(Based on 950 samples)
Rank 44978.7%
Min Avg Max
341 Read 429 493
155 Write 267 299
176 Mixed 231 258
119 SusWrite 249 293
65.6% 294 MB/s
Min Avg Max
12.5 4K Read 24.7 32.9
33.7 4K Write 65.6 96.4
17 4K Mixed 29.2 38.5
110% 39.9 MB/s
Min Avg Max
128 DQ Read 323 382
111 DQ Write 248 298
83.6 DQ Mixed 218 248
181% 263 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
124GB free (System drive)
Firmware: EMT42D0Q
SusWrite @10s intervals: 271 250 273 274 276 275 MB/s
80.2% Excellent
Read 484
Write 289
Mixed 254
SusWrite 270
72% 324 MB/s
4K Read 23.1
4K Write 52.2
4K Mixed 27.8
98% 34.4 MB/s
DQ Read 380
DQ Write 250
DQ Mixed 238
198% 289 MB/s
208GB free (System drive)
Firmware: EMT43D0Q
SusWrite @10s intervals: 271 254 292 291 292 291 MB/s
76.7% Very good
Read 427
Write 293
Mixed 247
SusWrite 282
70% 312 MB/s
4K Read 21.8
4K Write 60.7
4K Mixed 21.7
93% 34.7 MB/s
DQ Read 351
DQ Write 298
DQ Mixed 244
205% 298 MB/s
150GB free (System drive)
Firmware: EMT42D0Q
SusWrite @10s intervals: 238 264 267 272 259 274 MB/s
70.6% Very good
Read 396
Write 285
Mixed 236
SusWrite 262
66% 295 MB/s
4K Read 21.3
4K Write 53.2
4K Mixed 21.4
88% 32 MB/s
DQ Read 289
DQ Write 256
DQ Mixed 216
178% 254 MB/s
103GB free (System drive)
Firmware: EMT43D0Q
SusWrite @10s intervals: 199 169 169 159 162 164 MB/s
68.3% Good
Read 403
Write 282
Mixed 221
SusWrite 170
60% 269 MB/s
4K Read 25
4K Write 39.8
4K Mixed 27.2
94% 30.7 MB/s
DQ Read 311
DQ Write 263
DQ Mixed 238
192% 271 MB/s
54GB free (System drive)
Firmware: EMT43D0Q
SusWrite @10s intervals: 254 231 230 246 242 236 MB/s
68.1% Good
Read 376
Write 275
Mixed 216
SusWrite 240
62% 277 MB/s
4K Read 23.4
4K Write 45.5
4K Mixed 18.5
83% 29.1 MB/s
DQ Read 376
DQ Write 232
DQ Mixed 238
195% 282 MB/s
172GB free (System drive)
Firmware: EMT43D0Q
SusWrite @10s intervals: 271 281 284 287 289 288 MB/s
60.3% Good
Read 324
Write 282
Mixed 232
SusWrite 283
63% 280 MB/s
4K Read 12.2
4K Write 43.9
4K Mixed 18.4
65% 24.8 MB/s
DQ Read 158
DQ Write 287
DQ Mixed 218
167% 221 MB/s
65GB free (System drive)
Firmware: EMT42D0Q
SusWrite @10s intervals: 224 185 184 171 158 151 MB/s
59.9% Above average
Read 389
Write 276
Mixed 219
SusWrite 179
59% 266 MB/s
4K Read 12.3
4K Write 51.5
4K Mixed 17.2
68% 27 MB/s
DQ Read 330
DQ Write 245
DQ Mixed 227
186% 267 MB/s
46GB free (System drive)
Firmware: EMT42D0Q
SusWrite @10s intervals: 127 111 116 116 114 118 MB/s
38.4% Below average
Read 344
Write 160
Mixed 174
SusWrite 117
44% 199 MB/s
4K Read 10.5
4K Write 19.2
4K Mixed 12.6
42% 14.1 MB/s
DQ Read 77.6
DQ Write 119
DQ Mixed 62.2
57% 86.2 MB/s
950 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,944,221 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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Typical PM871 mSATA 256GB Builds (Compare 2,759 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 13%
Tree trunk
Desktop
Desktop 46%
Yacht
Workstation
Workstation 23%
Surfboard

System: Dell Latitude E7450

CPU
Core i7-5600UIntelBench 46%, 10,167 samples1,362x
Core i5-5300UIntelBench 41%, 11,700 samples1,266x
Core i5-5200UIntelBench 38%, 67,600 samples119x
GPU
HD 5500 (Mobile 0.95 GHz)IntelBench 4%, 140,819 samples2,673x
GeForce 840MNvidiaBench 9%, 13,262 samples81x
GTX 1070Nvidia  $415Bench 78%, 677,712 samples3x
SSD
PM871 mSATA 256GBSamsungBench 79%, 950 samples326x
RAM
HMT41GS6BFR8A-PB 1x8GBHynixBench 28%, 40,208 samples460x
HMT41GS6BFR8A-PB 2x8GBHynixBench 53%, 20,231 samples272x
M471B1G73QH0-YK0 1x8GBSamsungBench 29%, 22,120 samples182x
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Popular PM871 mSATA 256GB systems:

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  • - CPU tests include: integer, floating and string.
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Solid State Drive Rankings (Price vs Performance) December 2019 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]

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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.

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Speed Comparisons

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1012 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 i5-9400F $145Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $44
Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $58SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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