Average Bench: 79.7% (431st of 1011)

Based on 948 user benchmarks.  Model: SanDisk SD8SB8U256G1122

Good average bench

The SanDisk X400 256GB averaged 20.2% 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 193MB/s
Avg. 4K Random Mixed IO Speed 36.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X400 256GB is 40.5%. 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 164MB/s
Avg. Sequential Mixed IO Speed 234MB/s
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Average Bench

(Based on 948 samples)
Min Avg Max
328 Read 441 500
168 Write 321 471
129 Mixed 234 340
74.4 SusWrite 164 206
64.5% 290 MB/s
Min Avg Max
18.2 4K Read 29.7 39.7
35.7 4K Write 73.5 116
21.1 4K Mixed 36.2 49.5
130% 46.5 MB/s
Min Avg Max
82.2 DQ Read 307 372
90.8 DQ Write 226 275
43.5 DQ Mixed 193 238
164% 242 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
165GB free (System drive)
Firmware: X4140000
SusWrite @10s intervals: 193 187 194 178 193 193 MB/s
Read 359
Write 248
Mixed 206
SusWrite 189
56% 251 MB/s
4K Read 28.6
4K Write 73.6
4K Mixed 42
136% 48.1 MB/s
DQ Read 250
DQ Write 191
DQ Mixed 192
152% 211 MB/s
56GB free (System drive)
Firmware: X4120000
SusWrite @10s intervals: 187 134 142 175 119 85 MB/s
Read 482
Write 240
Mixed 262
SusWrite 140
62% 281 MB/s
4K Read 30.1
4K Write 65
4K Mixed 31.8
121% 42.3 MB/s
DQ Read 332
DQ Write 238
DQ Mixed 214
179% 261 MB/s
190GB free (System drive)
Firmware: X4120000
SusWrite @10s intervals: 195 193 193 190 193 192 MB/s
Read 396
Write 395
Mixed 268
SusWrite 193
70% 313 MB/s
4K Read 22.2
4K Write 47.7
4K Mixed 27.9
95% 32.6 MB/s
DQ Read 326
DQ Write 226
DQ Mixed 203
171% 252 MB/s
238GB free
Firmware: X4120000
SusWrite @10s intervals: 309 201 190 194 186 188 MB/s
Read 443
Write 394
Mixed 285
SusWrite 211
75% 333 MB/s
4K Read 15.4
4K Write 34.3
4K Mixed 25.5
74% 25.1 MB/s
DQ Read 267
DQ Write 218
DQ Mixed 218
170% 234 MB/s
948 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,525,148 SSDs tested.

 Prices

EbayUS $1201 min
AmazonUS $15126 days
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Typical X400 256GB Builds (Compare 642 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 54%
Yacht
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 54%
Yacht

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

EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $521

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.

UserBenchmark of the month

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) October 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

1011 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 $145Nvidia GTX 1660 $210Samsung 850 Evo 250GB $57
Intel Core i5-9600K $240Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $107
Intel Core i7-9700K $350Nvidia RTX 2060 $349Samsung 850 Pro 256GB $199
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $83SanDisk Ultra Fit 32GB $14
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