Average Bench: 86.4% (227th of 956)

Based on 12,353 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 13.5% 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-64Thread Mixed IO Speed 169MB/s
Avg. 4K Random Mixed IO Speed 35.8MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial BX100 250GB is 47.9%. This is a relatively wide range which indicates that the Crucial BX100 250GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 269MB/s
Avg. Sequential Mixed IO Speed 277MB/s

Average Bench

(Based on 12,353 samples)
Min Avg Max
364 Read 468 515
278 Write 347 371
37.8 Mixed 277 337
133 SusWrite 269 363
76% 340 MB/s
Min Avg Max
18.6 4K Read 26.1 31.2
10.9 4K Write 82.4 117
12.1 4K Mixed 35.8 45.6
129% 48.1 MB/s
Min Avg Max
83.7 DQ Read 254 281
73 DQ Write 277 321
28.7 DQ Mixed 169 198
154% 234 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
31GB free (System drive)
Firmware: MU02
SusWrite @10s intervals: 324 317 225 123 127 105 MB/s
Read 505
Write 367
Mixed 328
SusWrite 203
78% 351 MB/s
4K Read 28.1
4K Write 80.1
4K Mixed 38.8
135% 49 MB/s
DQ Read 281
DQ Write 326
DQ Mixed 196
177% 268 MB/s
118GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 357 213 229 201 233 186 MB/s
Read 485
Write 365
Mixed 44.3
SusWrite 236
63% 283 MB/s
4K Read 28.6
4K Write 63.1
4K Mixed 40.2
128% 44 MB/s
DQ Read 278
DQ Write 316
DQ Mixed 196
176% 263 MB/s
31GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 284 179 128 103 104 136 MB/s
Read 493
Write 362
Mixed 325
SusWrite 156
74% 334 MB/s
4K Read 28
4K Write 94.4
4K Mixed 37.8
141% 53.4 MB/s
DQ Read 279
DQ Write 310
DQ Mixed 196
175% 262 MB/s
12,353 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,001,532 SSDs tested.


Approx. $110 @ launch in Jan '15
EbayUS $12015 mins
AmazonUS $16028 mins
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Typical BX100 250GB Builds (Compare 14,021 builds) See popular component choices, score breakdowns and rankings.
Gaming 63%
Desktop 76%
Workstation 56%

Motherboard: MSI Z97 GAMING 5 (MS-7917) - $160

EDIT WITH CUSTOM PC BUILDER Value: 72% - Very good Total price: $985

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.

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How it works

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  • - CPU tests include: integer, floating and string.
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Solid State Drive Rankings (Price vs Performance) August 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 - 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.


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

Outlast and outperform your hard drive...

Added 3 years ago.


19 months ago.

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


3 years ago.

956 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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AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $120
Intel Core i5-8600K $240AMD RX 480 $280Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $901SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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