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KingstonSA400S37/120G
CrucialCT250BX100SSD1
▲ 53178 ▼

Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC. Release date ≈ Q1 2017.

VS
▲ 543,430 ▼

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

Effective Speed 
+41%
Real World Speed
Performance profile from 209,322 user samples
Benchmark your SSD here
166,392 User Benchmarks
Best Bench: 85% 108GB free
Worst Bench: 33% 55GB free (System drive)
Poor: 33% Great: 85%
SPEED RANK: 789th / 1072
42,930 User Benchmarks
Best Bench: 103% 139GB free (System drive)
Worst Bench: 59% 134GB free (System drive)
Poor: 59% Great: 103%
SPEED RANK: 376th / 1072
Effective Speed
Effective SSD Speed 		61.3 % 86.6 % Much faster effective speed.
+41%
Average Score 
+47%
Read
Avg. Sequential Read Speed 		405 MB/s 475 MB/s Faster read speed.
+17%
Write
Avg. Sequential Write Speed 		248 MB/s 349 MB/s Much faster write speed.
+41%
4K Read
Avg. 4K Random Read Speed 		27.1 MB/s +3% 26.2 MB/s
4K Write
Avg. 4K Random Write Speed 		61 MB/s 76.9 MB/s Faster random write.
+26%
Mixed
Avg. Sequential Mixed IO Speed 		232 MB/s 284 MB/s Faster mixed IO speed.
+22%
4K Mixed
Avg. 4K Random Mixed IO Speed 		25.2 MB/s 35.8 MB/s Much faster random mixed IO.
+42%
SusWrite
Avg. Sustained Write Speed 		98.5 MB/s 278 MB/s Hugely faster sustained write speed.
+182%
Peak Score 
+3%
Read
Peak Sequential Read Speed 		500 MB/s 514 MB/s +3%
Write
Peak Sequential Write Speed 		415 MB/s Faster peak write speed.
+12% 		370 MB/s
4K Read
Peak 4K Random Read Speed 		37.6 MB/s Faster peak random read.
+24% 		30.3 MB/s
4K Write
Peak 4K Random Write Speed 		99.1 MB/s 110 MB/s Faster peak random write.
+11%
Mixed
Peak Sequential Mixed IO Speed 		376 MB/s Faster peak mixed IO speed.
+11% 		338 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		41.6 MB/s 44.1 MB/s Slightly faster peak random mixed IO.
+6%
SusWrite
Peak Sequential Sustained Write 60s Average 		248 MB/s 364 MB/s Much faster peak sustained write speed.
+47%
Value & Sentiment 
+361%
Market Share
Based on 75,756,417 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.43 % Insanely higher market share.
+1,333% 		0.03 %
Value
Value For Money 		11.5 % Much better value.
+33% 		8.67 %
User Rating
UBM User Rating 		53 % 54 % +2%
Price
Price (score) 		$29 Much cheaper.
+79% 		$141
Nice To Haves 
+26%
Age
Newest 		87+ Months More recent.
+22% 		111 Months
DQ Read
Peak 4K-64Thread Read Speed 		247 MB/s 281 MB/s Faster peak deep queue read.
+14%
DQ Write
Peak 4K-64Thread Write Speed 		336 MB/s +4% 324 MB/s
AS-SSD Total
AS-SSD Total Score 		993 Pts 1023 Pts +3%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		186 MB/s 198 MB/s Slightly faster peak deep queue mixed IO.
+6%
ADQ Read
Avg. 4K-64Thread Read Speed 		151 MB/s 259 MB/s Much faster deep queue read.
+72%
ADQ Write
Avg. 4K-64Thread Write Speed 		176 MB/s 274 MB/s Much faster deep queue write.
+56%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		93.3 MB/s 173 MB/s Hugely faster deep queue mixed IO.
+85%
Specifications 
Capacity
Capacity 		120GB 250GB
Conclusion 
Average Bench 61.3%
Average Bench 86.6%
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It's cheap, the performance and capacity is cheap. [Sep '20 0306]

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

User Builds 
166,392
42,930
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Solid State Drive Rankings (Price vs Performance) April 2024 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 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 value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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