Average Bench: 112% (194th of 1058)

Based on 396 user benchmarks.  Model: NVMe SanDisk A400 SD9
Poor: 75%Average: 112% Great: 140%

Outstanding average bench

The Nvme SanDisk A400 SD9 256GB averaged 12.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme SanDisk A400 SD9 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 259MB/s
Avg. Sequential Read Speed 953MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Nvme SanDisk A400 SD9 256GB is 64.8%. This is a particularly wide range which indicates that the Nvme SanDisk A400 SD9 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 177MB/s
Avg. Sequential Mixed IO Speed 399MB/s
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Average Bench

(Based on 396 samples)
Min Avg Max
507 Read 953 1,503
211 Write 437 672
221 Mixed 399 720
92 SusWrite 177 220
108% 492 MB/s
Min Avg Max
14.3 4K Read 31 42.5
41.7 4K Write 88.7 123
13.7 4K Mixed 32.3 53.4
135% 50.7 MB/s
Min Avg Max
37.6 DQ Read 470 662
113 DQ Write 363 535
15.3 DQ Mixed 259 388
237% 364 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
187GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 276 206 210 200 184 202 MB/s
Read 923
Write 672
Mixed 577
SusWrite 213
132% 596 MB/s
4K Read 38
4K Write 113
4K Mixed 50.8
182% 67.2 MB/s
DQ Read 657
DQ Write 519
DQ Mixed 346
325% 507 MB/s
180GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 226 216 214 214 214 211 MB/s
Read 926
Write 308
Mixed 330
SusWrite 216
97% 445 MB/s
4K Read 41.9
4K Write 123
4K Mixed 43
184% 69.3 MB/s
DQ Read 585
DQ Write 494
DQ Mixed 347
313% 475 MB/s
122GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 227 208 211 211 210 211 MB/s
Read 1,065
Write 422
Mixed 298
SusWrite 213
109% 500 MB/s
4K Read 30.4
4K Write 117
4K Mixed 27.8
144% 58.4 MB/s
DQ Read 661
DQ Write 534
DQ Mixed 360
334% 519 MB/s
182GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 211 214 204 188 164 178 MB/s
Read 748
Write 213
Mixed 297
SusWrite 193
80% 363 MB/s
4K Read 32.7
4K Write 81.8
4K Mixed 46.8
153% 53.8 MB/s
DQ Read 440
DQ Write 365
DQ Mixed 321
263% 375 MB/s
179GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 214 201 196 205 210 207 MB/s
Read 928
Write 454
Mixed 245
SusWrite 205
100% 458 MB/s
4K Read 31.1
4K Write 61.6
4K Mixed 40.6
132% 44.4 MB/s
DQ Read 410
DQ Write 302
DQ Mixed 314
246% 342 MB/s
58GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 140 113 53 59 83 92 MB/s
Read 623
Write 163
Mixed 289
SusWrite 90
64% 291 MB/s
4K Read 39.5
4K Write 102
4K Mixed 49.3
177% 63.8 MB/s
DQ Read 608
DQ Write 272
DQ Mixed 235
228% 371 MB/s
68GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 160 120 106 117 97 114 MB/s
Read 574
Write 438
Mixed 319
SusWrite 119
80% 362 MB/s
4K Read 30.5
4K Write 81
4K Mixed 49.4
152% 53.6 MB/s
DQ Read 656
DQ Write 159
DQ Mixed 212
207% 342 MB/s
49GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 153 66 38 56 63 23 MB/s
Read 622
Write 238
Mixed 296
SusWrite 66.4
67% 306 MB/s
4K Read 27.2
4K Write 76
4K Mixed 9.1
93% 37.4 MB/s
DQ Read 522
DQ Write 236
DQ Mixed 203
197% 320 MB/s
396 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,501,884 SSDs tested.

Typical SanDisk A400 SD9 256GB Builds (Compare 250 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 9%
Tree trunk
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 9%
Tree trunk

System: Lenovo 81C3

EDIT WITH CUSTOM PC BUILDER

Popular SanDisk A400 SD9 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - 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) August 2021 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

1058 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

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Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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