Average Bench: 79.1% (454th of 1026)

Based on 1,060 user benchmarks.  Model: SanDisk SD8SB8U256G1122

Good average bench

The SanDisk X400 256GB averaged 20.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk X400 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 197MB/s
Avg. 4K Random Mixed IO Speed 35.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X400 256GB is 41.5%. This is a relatively wide range which indicates that the SanDisk X400 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 162MB/s
Avg. Sequential Mixed IO Speed 231MB/s
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Average Bench

(Based on 1,060 samples)
Min Avg Max
341 Read 442 502
189 Write 329 469
123 Mixed 231 330
68.4 SusWrite 162 206
64.8% 291 MB/s
Min Avg Max
16.1 4K Read 29 39.9
32.9 4K Write 73.3 114
19.9 4K Mixed 35.7 51
129% 46 MB/s
Min Avg Max
36.9 DQ Read 307 368
107 DQ Write 229 274
42.3 DQ Mixed 197 237
167% 244 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
110GB free
Firmware: X4120000
SusWrite @10s intervals: 272 193 191 193 194 194 MB/s
Read 502
Write 485
Mixed 334
SusWrite 206
85% 382 MB/s
4K Read 38.5
4K Write 102
4K Mixed 49.7
176% 63.3 MB/s
DQ Read 304
DQ Write 264
DQ Mixed 226
185% 264 MB/s
109GB free
Firmware: X4140000
SusWrite @10s intervals: 265 174 167 166 160 162 MB/s
Read 486
Write 463
Mixed 330
SusWrite 182
82% 365 MB/s
4K Read 35.7
4K Write 80.8
4K Mixed 46.6
157% 54.4 MB/s
DQ Read 283
DQ Write 264
DQ Mixed 230
184% 259 MB/s
184GB free (System drive)
Firmware: X4140000
SusWrite @10s intervals: 209 199 190 183 188 183 MB/s
Read 448
Write 218
Mixed 193
SusWrite 192
58% 263 MB/s
4K Read 27.2
4K Write 68.8
4K Mixed 38.5
127% 44.8 MB/s
DQ Read 338
DQ Write 258
DQ Mixed 230
191% 276 MB/s
163GB free (System drive)
Firmware: X4120000
SusWrite @10s intervals: 198 153 181 176 168 172 MB/s
Read 411
Write 383
Mixed 211
SusWrite 175
66% 295 MB/s
4K Read 16
4K Write 35.1
4K Mixed 14.9
62% 22 MB/s
DQ Read 313
DQ Write 262
DQ Mixed 228
187% 268 MB/s
1,060 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 26,872,461 SSDs tested.

 Prices

AmazonUS $1552 months
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Typical X400 256GB Builds (Compare 832 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 55%
Yacht
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 58%
Gunboat

Motherboard: MSI B350 TOMAHAWK PLUS (MS-7B36)

EDIT WITH CUSTOM PC BUILDER Value: 55% - Above average Total price: $648

Popular X400 256GB compatible motherboards:

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.
  • - 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) June 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

1026 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 $150Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $500Samsung 850 Pro 512GB $240
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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