CrucialCT250BX100SSD1
CrucialCT250MX500SSD1

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC. Release date: Q1 2015.

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date: Q4 2017.

Real World Speed
Performance profile from 19,543 user samples
14,460 User Benchmarks
Best Bench: 104% 122GB free
Worst Bench: 60% 95GB free
Poor: 60% Great: 104%
SPEED RANK: 230th / 956
5,083 User Benchmarks
Best Bench: 125% 232GB free
Worst Bench: 77% 89GB free (System drive)
Poor: 77% Great: 125%
SPEED RANK: 137th / 956
Effective Speed
Effective SSD Speed
86.9 % 107 % Faster effective speed.
+24%
Read
Avg. Sequential Read Speed
471 MB/s 477 MB/s +1%
Write
Avg. Sequential Write Speed
346 MB/s 422 MB/s Faster write speed.
+22%
4K Read
Avg. 4K Random Read Speed
26.3 MB/s 35.4 MB/s Much faster random read.
+35%
4K Write
Avg. 4K Random Write Speed
82.4 MB/s 90.4 MB/s Slightly faster random write.
+10%
Mixed
Avg. Sequential Mixed IO Speed
282 MB/s 413 MB/s Much faster mixed IO speed.
+46%
4K Mixed
Avg. 4K Random Mixed IO Speed
36.2 MB/s 48.9 MB/s Much faster random mixed IO.
+35%
SusWrite
Avg. Sustained Write Speed
269 MB/s 373 MB/s Much faster sustained write speed.
+39%
Read
Peak Sequential Read Speed
515 MB/s 515 MB/s
Write
Peak Sequential Write Speed
371 MB/s 468 MB/s Faster peak write speed.
+26%
4K Read
Peak 4K Random Read Speed
31.1 MB/s 43 MB/s Much faster peak random read.
+38%
4K Write
Peak 4K Random Write Speed
117 MB/s 121 MB/s +3%
Mixed
Peak Sequential Mixed IO Speed
337 MB/s 451 MB/s Much faster peak mixed IO speed.
+34%
4K Mixed
Peak 4K Random Mixed IO Speed
45.2 MB/s 60 MB/s Much faster peak random mixed IO.
+33%
SusWrite
Peak Sequential Sustained Write 60s Average
364 MB/s 459 MB/s Faster peak sustained write speed.
+26%
Market Share
Based on 8,568,611 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.23 % 0.49 % Hugely higher market share.
+113%
Value
Value For Money
58.7 % 174 % Hugely better value.
+196%
User Rating
UBM User Rating
62 % 75 % More popular.
+21%
Price
Price (score)
$160 $50 Much cheaper.
+69%
Age
Newest
44 Months 9 Months Much more recent.
+80%
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s 386 MB/s Much faster peak deep queue read.
+37%
DQ Write
Peak 4K-64Thread Write Speed
321 MB/s 359 MB/s Slightly faster peak deep queue write.
+12%
AS-SSD Total
AS-SSD Total Score
1,029 Pts 1,267 Pts Stronger server IO.
+23%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
198 MB/s 278 MB/s Much faster peak deep queue mixed IO.
+40%
ADQ Read
Avg. 4K-64Thread Read Speed
251 MB/s 342 MB/s Much faster deep queue read.
+36%
ADQ Write
Avg. 4K-64Thread Write Speed
279 MB/s 312 MB/s Slightly faster deep queue write.
+12%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
165 MB/s 249 MB/s Much faster deep queue mixed IO.
+51%
Capacity
Capacity
250GB 250GB
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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]

MORE DETAILS

The MX500 is Crucial’s current flagship consumer SATA SSD featuring their latest second generation 64-layer 3D TLC NAND. It’s available in 250 GB, 500 GB, 1 TB and 2 TB capacities in a 2.5-inch form factor. All but the 2 TB version will also be available in M.2 (2280) form in the future. The MX500 features a Silicon Motion SM2258 controller which is a change from the Marvell 88SS1074 controller featured in the MX300 (it’s nearly two year old predecessor). Performance is around 30% better than on the MX300 which currently retails at the same price. The MX500 has an SLC cache which increases with drive capacity. Consequently, the larger capacities are better able to sustain high sequential write speeds. The 250 GB version has 250MB of SLC cache, the 500 GB has 512 MB, the 1 TB has 1 GB and the 2 TB has 2 GB. Extended sustained write performance tests show that even though speed does drop off after the cache has been exhausted, it is still maintained at very respectable levels. The MX500’s five year warranty is in line with Samsung’s 850 Evo and exceeds it in terms of endurance (just 75 TBW for the 250 GB 850 Evo versus 100 TBW for the 250 GB MX500). It doesn’t quite match up to the Samsung’s 850 Evo’s performance (effective speed 8% slower), however at current prices it is about 20% cheaper, and on balance offers better value for money. [Mar '18 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 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 - 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.
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.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $344Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $114
Intel Core i5-8600K $260AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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