CrucialCT250BX100SSD1
CrucialCT525MX300SSD1

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

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.

Real World Speed
Performance profile from 69,469 user samples
21,362 User Benchmarks
Best Bench: 104% 232GB free
Worst Bench: 59% 79GB free (System drive)
Poor: 59% Great: 104%
SPEED RANK: 318th / 1003
48,107 User Benchmarks
Best Bench: 100% 489GB free
Worst Bench: 65% 78GB free (System drive)
Poor: 65% Great: 100%
SPEED RANK: 280th / 1003
Effective Speed
Effective SSD Speed
85.8 % 88.1 % +3%
Read
Avg. Sequential Read Speed
470 MB/s Faster read speed.
+17%
402 MB/s
Write
Avg. Sequential Write Speed
347 MB/s 406 MB/s Faster write speed.
+17%
4K Read
Avg. 4K Random Read Speed
25.9 MB/s +4% 24.9 MB/s
4K Write
Avg. 4K Random Write Speed
78.1 MB/s 91.9 MB/s Faster random write.
+18%
Mixed
Avg. Sequential Mixed IO Speed
283 MB/s 350 MB/s Faster mixed IO speed.
+24%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.1 MB/s 36.6 MB/s +4%
SusWrite
Avg. Sustained Write Speed
273 MB/s 291 MB/s Slightly faster sustained write speed.
+7%
Read
Peak Sequential Read Speed
514 MB/s Faster peak read speed.
+17%
441 MB/s
Write
Peak Sequential Write Speed
370 MB/s 482 MB/s Much faster peak write speed.
+30%
4K Read
Peak 4K Random Read Speed
30.8 MB/s Slightly faster peak random read.
+8%
28.4 MB/s
4K Write
Peak 4K Random Write Speed
116 MB/s 121 MB/s +4%
Mixed
Peak Sequential Mixed IO Speed
337 MB/s 389 MB/s Faster peak mixed IO speed.
+15%
4K Mixed
Peak 4K Random Mixed IO Speed
44.9 MB/s +5% 42.8 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
364 MB/s Slightly faster peak sustained write speed.
+10%
332 MB/s
Market Share
Based on 15,731,349 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.18 % 0.35 % Hugely higher market share.
+94%
Value
Value For Money
63.9 % 101 % Much better value.
+58%
User Rating
UBM User Rating
63 % 65 % +3%
Price
Price (score)
$140 Cheaper.
+15%
$165
Age
Newest
54 Months 37 Months Much more recent.
+31%
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s 352 MB/s Faster peak deep queue read.
+25%
DQ Write
Peak 4K-64Thread Write Speed
323 MB/s 328 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1029 Pts 1,150 Pts Slightly stronger server IO.
+12%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
198 MB/s 330 MB/s Much faster peak deep queue mixed IO.
+67%
ADQ Read
Avg. 4K-64Thread Read Speed
258 MB/s 309 MB/s Faster deep queue read.
+20%
ADQ Write
Avg. 4K-64Thread Write Speed
278 MB/s 279 MB/s +0%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
171 MB/s 279 MB/s Much faster deep queue mixed IO.
+63%
Capacity
Capacity
250GB 525GB
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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

Solid State Drive Rankings (Price vs Performance) July 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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The Best.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $120Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $222Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $607SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $77SanDisk Ultra Fit 32GB $12
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