Average Bench: 68.7% (367th of 885)

Based on 427 user benchmarks.  Model: SanDisk X400 2.5 7MM 256GB

Above average average bench

The Sandisk X400 2.5 7MM 256GB averaged 31.2% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. Sequential Read Speed 478MB/s
Avg. 4K Random Read Speed 21.2MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk X400 2.5 7MM 256GB is 38.4%. This is a relatively wide range which indicates that the Sandisk X400 2.5 7MM 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 36.7MB/s
Avg. 4K-64Thread Read Speed 153MB/s
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Average Bench

(Based on 427 samples)
Min Avg Max
443 Read 478 503
175 Write 320 470
241 Mixed 338 448
83.8% 379 MB/s
Min Avg Max
9.44 4K Read 21.2 30.5
15.9 4K Write 44.8 78.3
7.72 4K Mixed 16.5 26.9
76.9% 27.5 MB/s
Min Avg Max
14.1 DQ Read 153 320
25.7 DQ Write 169 268
7.46 DQ Mixed 36.7 61.6
61.9% 119 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
45GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 472
Write 255
Mixed 347
79% 358 MB/s
4K Read 22.3
4K Write 43.1
4K Mixed 22.5
85% 29.3 MB/s
DQ Read 188
DQ Write 215
DQ Mixed 62.7
86% 155 MB/s
183GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 503
Write 310
Mixed 280
80% 364 MB/s
4K Read 25.1
4K Write 53.4
4K Mixed 13.4
84% 30.6 MB/s
DQ Read 29.8
DQ Write 233
DQ Mixed 52.5
64% 105 MB/s
124GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 472
Write 261
Mixed 306
76% 346 MB/s
4K Read 22.2
4K Write 36.3
4K Mixed 20.8
80% 26.4 MB/s
DQ Read 252
DQ Write 196
DQ Mixed 60.2
90% 169 MB/s
177GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 481
Write 447
Mixed 435
101% 454 MB/s
4K Read 10.5
4K Write 19.9
4K Mixed 12.9
43% 14.4 MB/s
DQ Read 207
DQ Write 202
DQ Mixed 58.3
84% 156 MB/s
62GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 456
Write 316
Mixed 164
69% 312 MB/s
4K Read 19.6
4K Write 33.3
4K Mixed 21.8
75% 24.9 MB/s
DQ Read 183
DQ Write 182
DQ Mixed 60.7
79% 142 MB/s
163GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 473
Write 249
Mixed 321
77% 348 MB/s
4K Read 17
4K Write 33.8
4K Mixed 21
70% 23.9 MB/s
DQ Read 322
DQ Write 217
DQ Mixed 59.7
101% 200 MB/s
62GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 445
Write 406
Mixed 355
90% 402 MB/s
4K Read 9.22
4K Write 35.1
4K Mixed 10.1
46% 18.1 MB/s
DQ Read 219
DQ Write 160
DQ Mixed 48.3
74% 142 MB/s
150GB free
Firmware: X4152012
SYSTEM 4KALIGNED
Read 502
Write 265
Mixed 294
78% 353 MB/s
4K Read 21.4
4K Write 45.3
4K Mixed 12.1
72% 26.3 MB/s
DQ Read 28
DQ Write 163
DQ Mixed 12.7
34% 67.8 MB/s
427 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,667,951 SSDs tested.

Typical X400 2.5 7MM 256GB Builds (Compare 2,475 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 52%
Yacht
Workstation
Workstation 28%
Raft

System: Dell Inspiron 5567

EDIT WITH CUSTOM PC BUILDER

Popular X400 2.5 7MM 256GB systems:

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
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Solid State Drive Rankings (Price vs Performance) February 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.

 Comments

885 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 i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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