Average Bench: 61.9% (614th of 956)

Based on 1,333 user benchmarks.  Model: SanDisk Z400s M.2 2280 256GB

Above average average bench

The Sandisk Z400s M.2 2280 256GB averaged 38.0% 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 Write Speed 59.3MB/s
Avg. Sequential Read Speed 448MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Sandisk Z400s M.2 2280 256GB is 23.7%. This is a relatively narrow range which indicates that the Sandisk Z400s M.2 2280 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 5.44MB/s
Avg. 4K-64Thread Read Speed 112MB/s
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Average Bench

(Based on 1,333 samples)
Min Avg Max
375 Read 448 492
260 Write 306 327
188 Mixed 335 387
194 SusWrite 273 307
76.2% 341 MB/s
Min Avg Max
9.42 4K Read 19.5 25.8
21.5 4K Write 59.3 87.8
3.24 4K Mixed 5.44 13
67.8% 28.1 MB/s
Min Avg Max
16.6 DQ Read 112 200
58.3 DQ Write 182 270
3.3 DQ Mixed 30.1 84.6
55.7% 108 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
128GB free (System drive)
Firmware: Z2321012
SusWrite @10s intervals: 283 294 295 292 301 231 MB/s
Read 441
Write 292
Mixed 217
SusWrite 282
69% 308 MB/s
4K Read 19.6
4K Write 53
4K Mixed 12.7
74% 28.4 MB/s
DQ Read 167
DQ Write 259
DQ Mixed 84.3
100% 170 MB/s
148GB free (System drive)
Firmware: Z2329012
SusWrite @10s intervals: 258 285 303 303 308 303 MB/s
Read 430
Write 289
Mixed 207
SusWrite 294
68% 305 MB/s
4K Read 20.1
4K Write 64
4K Mixed 12.9
81% 32.3 MB/s
DQ Read 21.4
DQ Write 258
DQ Mixed 14
48% 97.9 MB/s
127GB free (System drive)
Firmware: Z2321012
SusWrite @10s intervals: 255 288 305 309 262 231 MB/s
Read 404
Write 292
Mixed 221
SusWrite 275
67% 298 MB/s
4K Read 19
4K Write 52.9
4K Mixed 12.5
73% 28.1 MB/s
DQ Read 153
DQ Write 266
DQ Mixed 85.9
100% 168 MB/s
40GB free (System drive)
Firmware: Z2327012
SusWrite @10s intervals: 246 152 38 34 40 32 MB/s
Read 372
Write 238
Mixed 191
SusWrite 90.3
49% 223 MB/s
4K Read 17.9
4K Write 56.1
4K Mixed 11.4
71% 28.5 MB/s
DQ Read 170
DQ Write 265
DQ Mixed 83.6
101% 173 MB/s
1,333 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,570,448 SSDs tested.

Typical Z400s M.2 2280 256GB Builds (Compare 8,055 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 51%
Yacht
Workstation
Workstation 34%
Sail boat

System: Dell Inspiron 7559

EDIT WITH CUSTOM PC BUILDER

Popular Z400s 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) September 2018 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.

 Comments

956 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 i7-8700K $370Nvidia GTX 1070 $344Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $114
Intel Core i5-8600K $260AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $898SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $167SanDisk Ultra Fit 32GB $11
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