Average Bench: 84.7% (156th of 908)

Based on 11,928 user benchmarks.  Models: CT250BX1 00SSD1, CT250BX100SSD1

The 250GB Crucial BX100 SSD is the value orientated variant of Crucial's M range of SSDs. The BX100 uses the same NAND as its premium MX200 sibling but the BX100 uses a Silicon Motion controller as opposed to the Marvel controller found in the MX range. Feature wise the BX100 is missing SLC caching and there is no hardware encryption (so security frameworks such as windows Bitlocker will operate less efficiently). In terms of I/O performance the BX100 looks promising. Comparing the BX100 and MX100 shows that the newer BX100 may be faster than its predecessor but as yet there are insufficient user benchmarks to draw any definitive conclusions. The BX100 has only just started hitting the shelves so there's plenty of room for price reductions from its already reasonable price tag. I will revisit this review when I have more performance data for the BX100. [Jan '15 SSDrivePro]


Very good average bench

The Crucial BX100 250GB averaged just 15.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial BX100 250GB near the top of the comparison list.


Avg. 4K Random Write Speed 78.5MB/s
Avg. 4K Random Read Speed 25MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial BX100 250GB is 34.6%. This is a relatively narrow range which indicates that the Crucial BX100 250GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 158MB/s
Avg. 4K-64Thread Mixed IO Speed 47.8MB/s

Average Bench

(Based on 11,928 samples)
Min Avg Max
397 Read 502 524
328 Write 356 370
344 Mixed 413 431
94.2% 424 MB/s
Min Avg Max
18.4 4K Read 25 30.4
43.8 4K Write 78.5 108
14.9 4K Mixed 27.6 37.8
115% 43.7 MB/s
Min Avg Max
21.6 DQ Read 158 277
60.2 DQ Write 203 311
15.1 DQ Mixed 47.8 72.3
73.1% 136 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
232GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 519
Write 363
Mixed 425
97% 436 MB/s
4K Read 28.4
4K Write 106
4K Mixed 37.8
148% 57.6 MB/s
DQ Read 270
DQ Write 300
DQ Mixed 71.9
113% 214 MB/s
5GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 519
Write 365
Mixed 428
97% 437 MB/s
4K Read 25.3
4K Write 77
4K Mixed 33.8
122% 45.4 MB/s
DQ Read 251
DQ Write 257
DQ Mixed 72
104% 193 MB/s
80GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 509
Write 362
Mixed 424
96% 432 MB/s
4K Read 29.8
4K Write 99.9
4K Mixed 22.4
127% 50.7 MB/s
DQ Read 30.5
DQ Write 218
DQ Mixed 22.8
48% 90.5 MB/s
166GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 512
Write 368
Mixed 426
97% 435 MB/s
4K Read 23.6
4K Write 50.8
4K Mixed 30.6
102% 35 MB/s
DQ Read 228
DQ Write 198
DQ Mixed 72
92% 166 MB/s
11,928 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,038,103 SSDs tested.


Approx. $110 @ launch in Jan '15
EbayUS $11121 mins
AmazonUS $1505 mins
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Typical BX100 250GB Builds (Compare 18,624 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 83%
Aircraft carrier
Workstation 64%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 83% - Excellent Total price: $1,216

Popular BX100 250GB 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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
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Solid State Drive Rankings (Price vs Performance) March 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]

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.


Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC.

Outlast and outperform your hard drive...

Added 3 years ago.


14 months ago.

For the current price. Its hard to beat! :)


3 years ago.


18 months ago.

Fast as hell

908 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

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The Best.
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Intel Core i5-8600K $243AMD RX 480 $400Samsung 850 Pro 256GB $120
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Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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