Average Bench: 112% (196th of 1058)

Based on 392 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 64.7%. 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 392 samples)
Min Avg Max
506 Read 953 1,504
211 Write 437 671
220 Mixed 399 721
92 SusWrite 177 220
108% 492 MB/s
Min Avg Max
14.2 4K Read 31 42.5
41.4 4K Write 88.7 123
14 4K Mixed 32.3 53.4
135% 50.6 MB/s
Min Avg Max
37.1 DQ Read 469 662
113 DQ Write 363 535
15.3 DQ Mixed 259 388
236% 363 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
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
180GB free (System drive)
Firmware: 0001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 235 193 183 168 200 206 MB/s
Read 936
Write 437
Mixed 311
SusWrite 197
103% 470 MB/s
4K Read 25.8
4K Write 115
4K Mixed 42.8
155% 61.2 MB/s
DQ Read 603
DQ Write 461
DQ Mixed 343
308% 469 MB/s
155GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 195 178 172 176 129 172 MB/s
Read 852
Write 459
Mixed 249
SusWrite 170
95% 433 MB/s
4K Read 37.1
4K Write 94.5
4K Mixed 40.9
159% 57.5 MB/s
DQ Read 407
DQ Write 353
DQ Mixed 347
269% 369 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
74GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 152 127 56 94 61 76 MB/s
Read 1,094
Write 447
Mixed 347
SusWrite 94.3
108% 495 MB/s
4K Read 33.2
4K Write 96.2
4K Mixed 27.1
136% 52.2 MB/s
DQ Read 398
DQ Write 306
DQ Mixed 285
231% 329 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
129GB free (System drive)
Firmware: 0001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 225 205 203 203 202 202 MB/s
Read 767
Write 568
Mixed 306
SusWrite 207
102% 462 MB/s
4K Read 28.1
4K Write 62.3
4K Mixed 37
123% 42.5 MB/s
DQ Read 239
DQ Write 346
DQ Mixed 158
157% 248 MB/s
67GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 146 139 42 95 66 65 MB/s
Read 508
Write 246
Mixed 231
SusWrite 92
59% 269 MB/s
4K Read 30.6
4K Write 76.1
4K Mixed 43.2
142% 50 MB/s
DQ Read 400
DQ Write 165
DQ Mixed 258
198% 274 MB/s
392 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 43,100,489 SSDs tested.

Typical SanDisk A400 SD9 256GB Builds (Compare 236 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 9%
Tree trunk
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 9%
Tree trunk

System: Lenovo 81C3

EDIT WITH CUSTOM PC BUILDER

Popular SanDisk A400 SD9 256GB systems:

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