CrucialCT275MX300SSD1
CrucialCT250BX100SSD1

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

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

Real World Speed
Performance profile from 48,117 user samples
30,242 User Benchmarks
Best Bench: 95% 237GB free
Worst Bench: 54% 153GB free (System drive)
Poor: 54% Great: 95%
SPEED RANK: 415th / 1003
17,875 User Benchmarks
Best Bench: 104% 232GB free
Worst Bench: 56% 25GB free (System drive)
Poor: 56% Great: 104%
SPEED RANK: 326th / 1003
Effective Speed
Effective SSD Speed
79.7 % 85.2 % Slightly faster effective speed.
+7%
Read
Avg. Sequential Read Speed
430 MB/s 471 MB/s Slightly faster read speed.
+10%
Write
Avg. Sequential Write Speed
381 MB/s Slightly faster write speed.
+9%
350 MB/s
4K Read
Avg. 4K Random Read Speed
23.9 MB/s 26.2 MB/s Slightly faster random read.
+10%
4K Write
Avg. 4K Random Write Speed
86.3 MB/s Slightly faster random write.
+13%
76.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed
335 MB/s Faster mixed IO speed.
+22%
274 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
34 MB/s 34.9 MB/s +3%
SusWrite
Avg. Sustained Write Speed
219 MB/s 271 MB/s Faster sustained write speed.
+24%
Read
Peak Sequential Read Speed
471 MB/s 514 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
477 MB/s Faster peak write speed.
+29%
371 MB/s
4K Read
Peak 4K Random Read Speed
28.5 MB/s 30.8 MB/s Slightly faster peak random read.
+8%
4K Write
Peak 4K Random Write Speed
121 MB/s Slightly faster peak random write.
+5%
115 MB/s
Mixed
Peak Sequential Mixed IO Speed
401 MB/s Faster peak mixed IO speed.
+19%
337 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
41.7 MB/s 44.8 MB/s Slightly faster peak random mixed IO.
+7%
SusWrite
Peak Sequential Sustained Write 60s Average
269 MB/s 365 MB/s Much faster peak sustained write speed.
+36%
Market Share
Based on 15,221,842 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.27 % Hugely higher market share.
+93%
0.14 %
Value
Value For Money
92.8 % Much better value.
+37%
67.6 %
User Rating
UBM User Rating
67 % Slightly more popular.
+6%
63 %
Price
Price (score)
$85 Much cheaper.
+34%
$129
Age
Newest
36 Months Much more recent.
+32%
53 Months
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s 281 MB/s Faster peak deep queue read.
+19%
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s +1% 324 MB/s
AS-SSD Total
AS-SSD Total Score
977 Pts 1,029 Pts Slightly stronger server IO.
+5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s Much faster peak deep queue mixed IO.
+55%
198 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
211 MB/s 255 MB/s Faster deep queue read.
+21%
ADQ Write
Avg. 4K-64Thread Write Speed
264 MB/s 281 MB/s Slightly faster deep queue write.
+6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
252 MB/s Much faster deep queue mixed IO.
+54%
164 MB/s
Capacity
Capacity
275GB 250GB
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The 275GB Crucial MX300 supersedes the MX200. Unlike its predecessor, the MX300 is TLC based and therefore suffers from weak write speeds in comparison to MLC drives. The MX300 utilises a sophisticated algorithm to enable fast burst write speeds provided that there is sufficient free space on the disk but as the drive fills up write performance drops to the relatively poor levels seen on other TLC drives (similar to mechanical drives). At current prices (70 USD) the MX300 competes well with other low end drives such as the OCZ Trion, Adata SP550 and Samsung 750 EVO. As stocks build the MX300 is likely to see further price cuts, so it could become a very interesting value proposition. See the current value leaders here[Sep '16 SSDrivePro]

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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) June 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 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Ultra Fit 32GB $12
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