Average Bench: 62.3% (702nd of 1012)

Based on 1,102 user benchmarks.  Model: SanDisk Z400s 2.5 7MM 256GB

Above average average bench

The Sandisk Z400s 2.5 7MM 256GB averaged 37.6% 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 Write Speed 238MB/s
Avg. 4K-64Thread Mixed IO Speed 73.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk Z400s 2.5 7MM 256GB is 33.8%. This is a relatively narrow range which indicates that the Sandisk Z400s 2.5 7MM 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 11MB/s
Avg. Sequential Mixed IO Speed 210MB/s
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Average Bench

(Based on 1,102 samples)
Min Avg Max
313 Read 404 483
221 Write 275 314
171 Mixed 210 241
205 SusWrite 274 315
64.9% 291 MB/s
Min Avg Max
8.58 4K Read 18 26.5
17.3 4K Write 57.1 98.5
5.4 4K Mixed 11 14.7
71.6% 28.7 MB/s
Min Avg Max
22.6 DQ Read 154 201
65 DQ Write 238 281
9.35 DQ Mixed 73.3 86.2
89.9% 155 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
79GB free (System drive)
Firmware: Z2321012
SusWrite @10s intervals: 259 295 302 306 303 292 MB/s
Read 441
Write 277
Mixed 187
SusWrite 293
67% 299 MB/s
4K Read 21.3
4K Write 66.5
4K Mixed 12.4
83% 33.4 MB/s
DQ Read 22.7
DQ Write 66.1
DQ Mixed 13.1
19% 34 MB/s
50GB free (System drive)
Firmware: Z2327012
SusWrite @10s intervals: 148 0.6 154 283 280 283 MB/s
Read 378
Write 257
Mixed 196
SusWrite 191
57% 255 MB/s
4K Read 20
4K Write 62.4
4K Mixed 10.6
77% 31 MB/s
DQ Read 177
DQ Write 270
DQ Mixed 86.2
104% 178 MB/s
71GB free
Firmware: Z2321012
SusWrite @10s intervals: 226 296 295 288 298 297 MB/s
Read 394
Write 298
Mixed 213
SusWrite 284
66% 297 MB/s
4K Read 23.3
4K Write 57.7
4K Mixed 8.4
77% 29.8 MB/s
DQ Read 23.5
DQ Write 87.6
DQ Mixed 9.3
21% 40.1 MB/s
1,102 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 20,094,986 SSDs tested.

Typical Z400s 2.5 7MM 256GB Builds (Compare 830 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 13%
Tree trunk
Desktop
Desktop 42%
Speed boat
Workstation
Workstation 22%
Surfboard

System: Dell Inspiron 13-7359

EDIT WITH CUSTOM PC BUILDER

Popular Z400s 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 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.

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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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
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.

 Comments

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $148Nvidia GTX 1660S (Super) $270Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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