Average Bench: 63.1% (695th of 1016)

Based on 1,370 user benchmarks.  Model: SAMSUNG SSD PM851 M.2 2280 256GB

Above average average bench

The Samsung PM851 M.2 2280 256GB averaged 36.9% 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 300MB/s
Avg. 4K Random Read Speed 21.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 M.2 2280 256GB is 44.3%. This is a relatively wide range which indicates that the Samsung PM851 M.2 2280 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 144MB/s
Avg. Sustained Write Speed 155MB/s
ADVERTISEMENT

Average Bench

(Based on 1,370 samples)
Min Avg Max
309 Read 417 495
44.4 Write 170 261
76.8 Mixed 144 194
39.4 SusWrite 155 251
48.8% 222 MB/s
Min Avg Max
10.9 4K Read 21.7 29.6
23.4 4K Write 52.8 92.3
12.6 4K Mixed 21.5 29.3
88.4% 32 MB/s
Min Avg Max
134 DQ Read 300 370
45.8 DQ Write 157 255
39.6 DQ Mixed 68.6 81.9
93.6% 175 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
203GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 154 213 234 249 250 252 MB/s
Read 451
Write 256
Mixed 185
SusWrite 225
62% 279 MB/s
4K Read 20.6
4K Write 42.6
4K Mixed 23
83% 28.7 MB/s
DQ Read 236
DQ Write 222
DQ Mixed 73.1
98% 177 MB/s
190GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 171 192 195 206 198 200 MB/s
Read 463
Write 217
Mixed 153
SusWrite 194
57% 256 MB/s
4K Read 23.3
4K Write 42.5
4K Mixed 19.5
83% 28.4 MB/s
DQ Read 277
DQ Write 191
DQ Mixed 65.3
94% 178 MB/s
137GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 198 224 220 206 138 112 MB/s
Read 375
Write 252
Mixed 168
SusWrite 183
54% 244 MB/s
4K Read 23.7
4K Write 51.4
4K Mixed 14.3
81% 29.8 MB/s
DQ Read 344
DQ Write 241
DQ Mixed 71.4
113% 219 MB/s
98GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 99 68 65 63 59 57 MB/s
Read 412
Write 166
Mixed 150
SusWrite 68.4
44% 199 MB/s
4K Read 26.9
4K Write 57.7
4K Mixed 23.4
101% 36 MB/s
DQ Read 366
DQ Write 130
DQ Mixed 77.5
102% 191 MB/s
31GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 60 41 47 41 42 46 MB/s
Read 476
Write 48.7
Mixed 102
SusWrite 46.3
36% 168 MB/s
4K Read 21.7
4K Write 45.7
4K Mixed 18.9
81% 28.8 MB/s
DQ Read 350
DQ Write 58.1
DQ Mixed 54.7
78% 154 MB/s
107GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 162 139 171 146 139 159 MB/s
Read 357
Write 222
Mixed 163
SusWrite 153
50% 224 MB/s
4K Read 17.2
4K Write 31.7
4K Mixed 12.6
59% 20.5 MB/s
DQ Read 228
DQ Write 170
DQ Mixed 60.6
83% 153 MB/s
200GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 146 88 68 52 32 34 MB/s
Read 336
Write 234
Mixed 158
SusWrite 69.8
44% 199 MB/s
4K Read 9.2
4K Write 49.5
4K Mixed 15.1
60% 24.6 MB/s
DQ Read 357
DQ Write 222
DQ Mixed 69.5
111% 216 MB/s
1,370 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,681,597 SSDs tested.

Typical PM851 M.2 2280 256GB Builds (Compare 1,287 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 13%
Tree trunk
Desktop
Desktop 38%
Jet ski
Workstation
Workstation 20%
Surfboard

System: Dell XPS 13 9343

EDIT WITH CUSTOM PC BUILDER

Popular PM851 M.2 2280 256GB 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

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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) January 2020 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]

ADVERTISEMENT

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.

 Comments

1016 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback