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 34,236 user samples
21,046 User Benchmarks
Best Bench: 98% 140GB free (System drive)
Worst Bench: 59% 51GB free (System drive)
Poor: 59% Great: 98%
SPEED RANK: 314th / 964
13,190 User Benchmarks
Best Bench: 102% 138GB free
Worst Bench: 60% 92GB free (System drive)
Poor: 60% Great: 102%
SPEED RANK: 258th / 964
Effective Speed
Effective SSD Speed
81.9 % 86.3 % Slightly faster effective speed.
+5%
Read
Avg. Sequential Read Speed
409 MB/s 477 MB/s Faster read speed.
+17%
Write
Avg. Sequential Write Speed
313 MB/s 350 MB/s Slightly faster write speed.
+12%
4K Read
Avg. 4K Random Read Speed
26.3 MB/s 26.4 MB/s +0%
4K Write
Avg. 4K Random Write Speed
91.4 MB/s Slightly faster random write.
+14%
80.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed
282 MB/s 285 MB/s +1%
4K Mixed
Avg. 4K Random Mixed IO Speed
37.1 MB/s +3% 36.1 MB/s
SusWrite
Avg. Sustained Write Speed
224 MB/s 263 MB/s Faster sustained write speed.
+17%
Read
Peak Sequential Read Speed
454 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
31 MB/s 31.1 MB/s +0%
4K Write
Peak 4K Random Write Speed
125 MB/s Slightly faster peak random write.
+8%
116 MB/s
Mixed
Peak Sequential Mixed IO Speed
316 MB/s 337 MB/s Slightly faster peak mixed IO speed.
+7%
4K Mixed
Peak 4K Random Mixed IO Speed
45.1 MB/s 45.3 MB/s +0%
SusWrite
Peak Sequential Sustained Write 60s Average
328 MB/s 361 MB/s Slightly faster peak sustained write speed.
+10%
Market Share
Based on 9,548,135 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.33 % Much higher market share.
+43%
0.23 %
Value
Value For Money
71.7 % Much better value.
+33%
53.8 %
User Rating
UBM User Rating
64 % +3% 62 %
Price
Price (score)
$116 Much cheaper.
+35%
$178
Age
Newest
53 Months 46 Months Slightly more recent.
+13%
DQ Read
Peak 4K-64Thread Read Speed
274 MB/s 281 MB/s +3%
DQ Write
Peak 4K-64Thread Write Speed
312 MB/s 323 MB/s +4%
AS-SSD Total
AS-SSD Total Score
1,005 Pts 1,030 Pts +2%
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
179 MB/s 256 MB/s Much faster deep queue read.
+43%
ADQ Write
Avg. 4K-64Thread Write Speed
275 MB/s 282 MB/s +3%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
138 MB/s 162 MB/s Faster deep queue mixed IO.
+17%
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) November 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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CPUGPUSSD
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AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $243Samsung 850 Evo 500GB $106
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $100
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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