CrucialCT256MX100SSD1
$116
CrucialCT250BX100SSD1
 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC.

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

Real World Speed
Performance profile from 21,828 user samples
13,423 User Benchmarks
Best Bench: 95% 233GB free
Worst Bench: 60% 52GB free
Poor: 60% Great: 95%
SPEED RANK: 182nd / 862
8,405 User Benchmarks
Best Bench: 101% 63GB free
Worst Bench: 64% 232GB free
Poor: 64% Great: 101%
SPEED RANK: 129th / 862
Effective Speed
Effective SSD Speed
81.4 % -5% 85.1 % +5%
Read
Avg. Sequential Read Speed
496 MB/s -1% 501 MB/s +1%
Write
Avg. Sequential Write Speed
323 MB/s -10% 354 MB/s Slightly faster write speed.
+10%
4K Read
Avg. 4K Random Read Speed
25.5 MB/s +1% 25.3 MB/s -1%
4K Write
Avg. 4K Random Write Speed
86 MB/s Slightly faster random write.
+8%
80 MB/s -8%
Mixed
Avg. Sequential Mixed IO Speed
369 MB/s -11% 409 MB/s Slightly faster mixed IO speed.
+11%
4K Mixed
Avg. 4K Random Mixed IO Speed
24.6 MB/s -13% 27.7 MB/s Slightly faster random mixed IO.
+13%
Read
Peak Sequential Read Speed
522 MB/s -0% 524 MB/s +0%
Write
Peak Sequential Write Speed
332 MB/s -12% 371 MB/s Slightly faster peak write speed.
+12%
4K Read
Peak 4K Random Read Speed
31.2 MB/s +1% 30.8 MB/s -1%
4K Write
Peak 4K Random Write Speed
123 MB/s Slightly faster peak random write.
+7%
115 MB/s -7%
Mixed
Peak Sequential Mixed IO Speed
396 MB/s -9% 432 MB/s Slightly faster peak mixed IO speed.
+9%
4K Mixed
Peak 4K Random Mixed IO Speed
33.5 MB/s -13% 38 MB/s Slightly faster peak random mixed IO.
+13%
Market Share
Based on 4,418,747 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.54 % Much higher market share.
+50%
0.36 % -50%
Value
Value For Money
71.2 % Better value.
+21%
58.8 % -21%
User Rating
UBM User Rating
64 % +3% 62 % -3%
Price
Price (score)
$116 Cheaper.
+25%
$155 -25%
Age
Newest
41 Months -17% 34 Months More recent.
+17%
DQ Read
Peak 4K-64Thread Read Speed
209 MB/s -33% 278 MB/s Much faster peak deep queue read.
+33%
DQ Write
Peak 4K-64Thread Write Speed
304 MB/s -3% 314 MB/s +3%
AS-SSD Total
AS-SSD Total Score
905 Pts -12% 1,016 Pts Slightly stronger server IO.
+12%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
52.2 MB/s -39% 72.3 MB/s Much faster peak deep queue mixed IO.
+39%
ADQ Read
Avg. 4K-64Thread Read Speed
119 MB/s -35% 161 MB/s Much faster deep queue read.
+35%
ADQ Write
Avg. 4K-64Thread Write Speed
207 MB/s -1% 210 MB/s +1%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
35.3 MB/s -36% 48.1 MB/s Much faster deep queue mixed IO.
+36%
Capacity
Capacity
256GB 250GB
ADVERTISEMENT

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 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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