Average Bench: 68.8% (414th of 927)

Based on 533 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 477MB/s
Avg. 4K Random Read Speed 21.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk X400 2.5 7MM 256GB is 38.2%. 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 37.1MB/s
Avg. 4K-64Thread Read Speed 152MB/s
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Average Bench

(Based on 533 samples)
Min Avg Max
441 Read 477 504
167 Write 315 469
231 Mixed 336 448
83.3% 376 MB/s
Min Avg Max
9.66 4K Read 21.6 31.7
16.8 4K Write 45.6 79.5
7.83 4K Mixed 16.6 26.7
78.2% 28 MB/s
Min Avg Max
14.8 DQ Read 152 319
29.2 DQ Write 168 268
7.53 DQ Mixed 37.1 61.3
62% 119 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
136GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 470
Write 349
Mixed 353
87% 391 MB/s
4K Read 20.4
4K Write 48.4
4K Mixed 25.2
89% 31.4 MB/s
DQ Read 265
DQ Write 236
DQ Mixed 60.1
97% 187 MB/s
161GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 449
Write 268
Mixed 315
76% 344 MB/s
4K Read 23.1
4K Write 46.6
4K Mixed 13.7
77% 27.8 MB/s
DQ Read 25.7
DQ Write 173
DQ Mixed 11.7
35% 70.1 MB/s
126GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 494
Write 220
Mixed 290
74% 335 MB/s
4K Read 20.7
4K Write 49.4
4K Mixed 12.8
74% 27.6 MB/s
DQ Read 26.1
DQ Write 240
DQ Mixed 37.9
58% 101 MB/s
43GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 475
Write 410
Mixed 344
91% 410 MB/s
4K Read 13.3
4K Write 32.7
4K Mixed 7.86
47% 17.9 MB/s
DQ Read 22.4
DQ Write 37.5
DQ Mixed 56.7
36% 38.9 MB/s
182GB free
Firmware: X4152012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 496
Write 201
Mixed 374
79% 357 MB/s
4K Read 23.3
4K Write 49.8
4K Mixed 13.5
79% 28.9 MB/s
DQ Read 28.7
DQ Write 50.9
DQ Mixed 14.2
18% 31.3 MB/s
162GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 480
Write 226
Mixed 394
81% 367 MB/s
4K Read 9.53
4K Write 16.9
4K Mixed 11.9
38% 12.7 MB/s
DQ Read 239
DQ Write 208
DQ Mixed 6.72
64% 151 MB/s
153GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 471
Write 225
Mixed 370
78% 355 MB/s
4K Read 12.1
4K Write 28.7
4K Mixed 7.76
43% 16.2 MB/s
DQ Read 137
DQ Write 231
DQ Mixed 51
76% 140 MB/s
33GB free
Firmware: X4130012 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 467
Write 125
Mixed 198
57% 264 MB/s
4K Read 18.4
4K Write 40.6
4K Mixed 13.2
66% 24 MB/s
DQ Read 169
DQ Write 111
DQ Mixed 53.3
63% 111 MB/s
533 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,774,655 SSDs tested.

Typical X400 2.5 7MM 256GB Builds (Compare 3,205 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 52%
Yacht
Workstation
Workstation 27%
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.

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How it works

  • - Download and run UserBenchMark (UBM).
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  • - GPU tests include: six 3D game simulations.
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Solid State Drive Rankings (Price vs Performance) May 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

927 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
AMD Ryzen 5 1600 $169Nvidia GTX 1070 $447Samsung 850 Evo 250GB $100
Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
Intel Core i7-7700K $299AMD RX 480 $330Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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