Average Bench: 77.4% (501st of 1040)

Based on 1,454 user benchmarks.  Model: SanDisk SD8SB8U256G1122

Good average bench

The SanDisk X400 256GB averaged 22.6% 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 196MB/s
Avg. 4K Random Mixed IO Speed 35MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X400 256GB is 41%. 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 160MB/s
Avg. Sequential Mixed IO Speed 223MB/s
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Average Bench

(Based on 1,454 samples)
Min Avg Max
339 Read 435 502
181 Write 312 457
124 Mixed 223 316
69.6 SusWrite 160 201
62.8% 282 MB/s
Min Avg Max
15.4 4K Read 27.7 39.3
30.6 4K Write 71.4 112
19.1 4K Mixed 35 50
125% 44.7 MB/s
Min Avg Max
48.8 DQ Read 305 367
104 DQ Write 221 272
48.2 DQ Mixed 196 236
164% 240 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
204GB free (System drive)
Firmware: X4162000
SusWrite @10s intervals: 214 200 193 183 187 189 MB/s
Read 434
Write 392
Mixed 251
SusWrite 194
71% 318 MB/s
4K Read 30.8
4K Write 70.1
4K Mixed 40.8
136% 47.2 MB/s
DQ Read 222
DQ Write 195
DQ Mixed 181
143% 199 MB/s
137GB free (System drive)
Firmware: X4120000
SusWrite @10s intervals: 223 172 147 143 94 143 MB/s
Read 481
Write 415
Mixed 291
SusWrite 154
75% 335 MB/s
4K Read 29.7
4K Write 57.4
4K Mixed 36
122% 41 MB/s
DQ Read 340
DQ Write 232
DQ Mixed 221
182% 264 MB/s
136GB free (System drive)
Firmware: X4162000
SusWrite @10s intervals: 216 197 193 191 191 189 MB/s
Read 482
Write 305
Mixed 224
SusWrite 196
67% 302 MB/s
4K Read 25.3
4K Write 52.8
4K Mixed 27.6
102% 35.2 MB/s
DQ Read 360
DQ Write 261
DQ Mixed 227
192% 283 MB/s
1,454 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,043,958 SSDs tested.

 Prices

AmazonUS $15510 months
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Typical X400 256GB Builds (Compare 1,249 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 4%
Tree trunk
Desktop
Desktop 48%
Yacht
Workstation
Workstation 4%
Tree trunk

Motherboard: Dell OptiPlex 980

EDIT WITH CUSTOM PC BUILDER Value: 32% - Below average Total price: $304

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) January 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

1040 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 i5-10600K $257Nvidia RTX 3060-Ti $400Crucial MX500 250GB $47
Intel Core i5-9600K $200Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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