CrucialCT256MX100SSD1
$116
CrucialCT250BX100SSD1
 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q2 2014.

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

Real World Speed
Performance profile from 38,755 user samples
23,397 User Benchmarks
Best Bench: 96% 96GB free
Worst Bench: 57% 116GB free (System drive)
Poor: 57% Great: 96%
SPEED RANK: 348th / 980
15,358 User Benchmarks
Best Bench: 104% 101GB free (System drive)
Worst Bench: 59% 224GB free
Poor: 59% Great: 104%
SPEED RANK: 263rd / 980
Effective Speed
Effective SSD Speed
81.7 % 87.6 % Slightly faster effective speed.
+7%
Read
Avg. Sequential Read Speed
412 MB/s 470 MB/s Slightly faster read speed.
+14%
Write
Avg. Sequential Write Speed
313 MB/s 349 MB/s Slightly faster write speed.
+12%
4K Read
Avg. 4K Random Read Speed
26.4 MB/s 26.5 MB/s +0%
4K Write
Avg. 4K Random Write Speed
90.4 MB/s Slightly faster random write.
+11%
81.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed
284 MB/s 284 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
37.1 MB/s +1% 36.7 MB/s
SusWrite
Avg. Sustained Write Speed
221 MB/s 277 MB/s Faster sustained write speed.
+25%
Read
Peak Sequential Read Speed
451 MB/s 516 MB/s Slightly faster peak read speed.
+14%
Write
Peak Sequential Write Speed
332 MB/s 370 MB/s Slightly faster peak write speed.
+11%
4K Read
Peak 4K Random Read Speed
30.9 MB/s 31.1 MB/s +1%
4K Write
Peak 4K Random Write Speed
122 MB/s +4% 117 MB/s
Mixed
Peak Sequential Mixed IO Speed
316 MB/s 339 MB/s Slightly faster peak mixed IO speed.
+7%
4K Mixed
Peak 4K Random Mixed IO Speed
44.5 MB/s 45.2 MB/s +2%
SusWrite
Peak Sequential Sustained Write 60s Average
328 MB/s 364 MB/s Slightly faster peak sustained write speed.
+11%
Market Share
Based on 11,454,160 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.29 % Hugely higher market share.
+81%
0.16 %
Value
Value For Money
71.5 % +3% 69.5 %
User Rating
UBM User Rating
64 % +2% 63 %
Price
Price (score)
$116 Slightly cheaper.
+10%
$129
Age
Newest
55 Months 48 Months Slightly more recent.
+13%
DQ Read
Peak 4K-64Thread Read Speed
252 MB/s 281 MB/s Slightly faster peak deep queue read.
+12%
DQ Write
Peak 4K-64Thread Write Speed
313 MB/s 322 MB/s +3%
AS-SSD Total
AS-SSD Total Score
970 Pts 1,030 Pts Slightly stronger server IO.
+6%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
182 MB/s 198 MB/s Slightly faster peak deep queue mixed IO.
+9%
ADQ Read
Avg. 4K-64Thread Read Speed
175 MB/s 252 MB/s Much faster deep queue read.
+44%
ADQ Write
Avg. 4K-64Thread Write Speed
273 MB/s 280 MB/s +3%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
133 MB/s 170 MB/s Faster deep queue mixed IO.
+28%
Capacity
Capacity
256GB 250GB
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The Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]

MORE DETAILS

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

Solid State Drive Rankings (Price vs Performance) January 2019 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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CPUGPUSSD
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AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $204Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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