CrucialCT250BX100SSD1
CrucialCT275MX300SSD1

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 33,184 user samples
13,261 User Benchmarks
Best Bench: 103% 138GB free
Worst Bench: 60% 23GB free (System drive)
Poor: 60% Great: 103%
SPEED RANK: 257th / 964
19,923 User Benchmarks
Best Bench: 95% 62GB free
Worst Bench: 55% 38GB free (System drive)
Poor: 55% Great: 95%
SPEED RANK: 332nd / 964
Effective Speed
Effective SSD Speed
86.7 % Slightly faster effective speed.
+7%
80.8 %
Read
Avg. Sequential Read Speed
475 MB/s Slightly faster read speed.
+9%
434 MB/s
Write
Avg. Sequential Write Speed
351 MB/s 387 MB/s Slightly faster write speed.
+10%
4K Read
Avg. 4K Random Read Speed
26.4 MB/s Slightly faster random read.
+9%
24.3 MB/s
4K Write
Avg. 4K Random Write Speed
80 MB/s 88.8 MB/s Slightly faster random write.
+11%
Mixed
Avg. Sequential Mixed IO Speed
289 MB/s 339 MB/s Faster mixed IO speed.
+17%
4K Mixed
Avg. 4K Random Mixed IO Speed
36.1 MB/s +4% 34.7 MB/s
SusWrite
Avg. Sustained Write Speed
269 MB/s Faster sustained write speed.
+22%
220 MB/s
Read
Peak Sequential Read Speed
515 MB/s Slightly faster peak read speed.
+9%
472 MB/s
Write
Peak Sequential Write Speed
370 MB/s 476 MB/s Faster peak write speed.
+29%
4K Read
Peak 4K Random Read Speed
31 MB/s Slightly faster peak random read.
+8%
28.7 MB/s
4K Write
Peak 4K Random Write Speed
116 MB/s 122 MB/s Slightly faster peak random write.
+5%
Mixed
Peak Sequential Mixed IO Speed
337 MB/s 400 MB/s Faster peak mixed IO speed.
+19%
4K Mixed
Peak 4K Random Mixed IO Speed
45.2 MB/s Slightly faster peak random mixed IO.
+7%
42.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
362 MB/s Much faster peak sustained write speed.
+36%
266 MB/s
Market Share
Based on 9,661,111 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.22 % 0.37 % Much higher market share.
+68%
Value
Value For Money
54 % 94.2 % Much better value.
+74%
User Rating
UBM User Rating
62 % 66 % Slightly more popular.
+6%
Price
Price (score)
$178 $85 Much cheaper.
+52%
Age
Newest
46 Months 29 Months Much more recent.
+37%
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s Faster peak deep queue read.
+19%
237 MB/s
DQ Write
Peak 4K-64Thread Write Speed
323 MB/s 326 MB/s +1%
AS-SSD Total
AS-SSD Total Score
1,030 Pts Slightly stronger server IO.
+5%
980 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
198 MB/s 307 MB/s Much faster peak deep queue mixed IO.
+55%
ADQ Read
Avg. 4K-64Thread Read Speed
256 MB/s Faster deep queue read.
+19%
215 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
281 MB/s +4% 269 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
165 MB/s 254 MB/s Much faster deep queue mixed IO.
+54%
Capacity
Capacity
250GB 275GB
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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

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]

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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The Best.
CPUGPUSSD
Intel Core i7-8700K $359Nvidia GTX 1070 $340Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $235Samsung 850 Evo 500GB $97
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
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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