Average Bench: 114% (177th of 1030)

Based on 344 user benchmarks.  Model: NVMe SanDisk A400 SD9
Poor: 75%Average: 114% Great: 142%

Popular builds with this SSD

Outstanding average bench

The Nvme SanDisk A400 SD9 256GB averaged 13.6% 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 251MB/s
Avg. Sequential Read Speed 979MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Nvme SanDisk A400 SD9 256GB is 67%. 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 182MB/s
Avg. Sequential Mixed IO Speed 412MB/s
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Average Bench

(Based on 344 samples)
Min Avg Max
524 Read 979 1,519
212 Write 444 672
223 Mixed 412 725
94.3 SusWrite 182 220
111% 504 MB/s
Min Avg Max
14.6 4K Read 31.3 42.5
39.7 4K Write 89.1 123
13.6 4K Mixed 32 53.5
136% 50.8 MB/s
Min Avg Max
33.4 DQ Read 460 662
109 DQ Write 361 534
14.6 DQ Mixed 251 388
231% 357 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
209GB free (System drive)
Firmware: 0001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 232 201 201 198 206 197 MB/s
Read 900
Write 674
Mixed 447
SusWrite 206
124% 557 MB/s
4K Read 26.8
4K Write 123
4K Mixed 55.5
177% 68.5 MB/s
DQ Read 659
DQ Write 523
DQ Mixed 392
347% 525 MB/s
126GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 198 196 178 164 172 166 MB/s
Read 958
Write 416
Mixed 234
SusWrite 179
98% 446 MB/s
4K Read 28.2
4K Write 115
4K Mixed 47.1
164% 63.3 MB/s
DQ Read 662
DQ Write 424
DQ Mixed 372
323% 486 MB/s
143GB free (System drive)
Firmware: 0001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 228 206 214 202 194 207 MB/s
Read 652
Write 360
Mixed 425
SusWrite 209
91% 412 MB/s
4K Read 36.4
4K Write 118
4K Mixed 41.9
171% 65.5 MB/s
DQ Read 661
DQ Write 532
DQ Mixed 358
333% 517 MB/s
140GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 238 181 207 212 202 199 MB/s
Read 724
Write 636
Mixed 338
SusWrite 206
106% 476 MB/s
4K Read 25
4K Write 97.2
4K Mixed 23.2
119% 48.5 MB/s
DQ Read 643
DQ Write 456
DQ Mixed 348
315% 482 MB/s
88GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 205 191 163 192 154 129 MB/s
Read 802
Write 228
Mixed 240
SusWrite 172
79% 361 MB/s
4K Read 25.5
4K Write 104
4K Mixed 15.9
114% 48.3 MB/s
DQ Read 652
DQ Write 460
DQ Mixed 324
305% 478 MB/s
197GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 265 209 193 194 196 202 MB/s
Read 794
Write 675
Mixed 493
SusWrite 210
121% 543 MB/s
4K Read 23.2
4K Write 61.1
4K Mixed 23.1
97% 35.8 MB/s
DQ Read 660
DQ Write 516
DQ Mixed 374
338% 517 MB/s
93GB free (System drive)
Firmware: A3590001 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 214 168 182 150 145 154 MB/s
Read 902
Write 414
Mixed 250
SusWrite 169
95% 434 MB/s
4K Read 31.9
4K Write 63.1
4K Mixed 33.9
125% 43 MB/s
DQ Read 369
DQ Write 186
DQ Mixed 315
224% 290 MB/s
344 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,688,264 SSDs tested.

Typical SanDisk A400 SD9 256GB Builds (Compare 104 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 9%
Tree trunk

System: Lenovo 81C3

EDIT WITH CUSTOM PC BUILDER

Popular SanDisk A400 SD9 256GB systems:

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Solid State Drive Rankings (Price vs Performance) August 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]

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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

1030 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

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Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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