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CrucialCT240BX300SSD1
CrucialCT250MX200SSD1
$134
▲ 5138 ▼

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D MLC. Release date: Q3 2017.

VS
▲ 554,480 ▼
 $134 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q1 2015.

Effective Speed 
+0%
Real World Speed
Performance profile from 33,633 user samples
Benchmark your SSD here
7,269 User Benchmarks
Best Bench: 114% 223GB free
Worst Bench: 65% 75GB free (System drive)
Poor: 65% Great: 114%
SPEED RANK: 283rd / 1072
26,364 User Benchmarks
Best Bench: 113% 110GB free
Worst Bench: 69% 211GB free
Poor: 69% Great: 113%
SPEED RANK: 280th / 1072
Effective Speed
Effective SSD Speed 		94.5 % 94.8 % +0%
Average Score 
+1%
Read
Avg. Sequential Read Speed 		473 MB/s Faster read speed.
+11% 		426 MB/s
Write
Avg. Sequential Write Speed 		407 MB/s 411 MB/s +1%
4K Read
Avg. 4K Random Read Speed 		27.3 MB/s 28 MB/s +3%
4K Write
Avg. 4K Random Write Speed 		80.2 MB/s 86.7 MB/s Slightly faster random write.
+8%
Mixed
Avg. Sequential Mixed IO Speed 		365 MB/s Slightly faster mixed IO speed.
+7% 		342 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		39 MB/s 39.3 MB/s +1%
SusWrite
Avg. Sustained Write Speed 		355 MB/s +3% 346 MB/s
Peak Score 
+4%
Read
Peak Sequential Read Speed 		514 MB/s Slightly faster peak read speed.
+9% 		470 MB/s
Write
Peak Sequential Write Speed 		473 MB/s +1% 470 MB/s
4K Read
Peak 4K Random Read Speed 		32.9 MB/s +1% 32.6 MB/s
4K Write
Peak 4K Random Write Speed 		118 MB/s 120 MB/s +2%
Mixed
Peak Sequential Mixed IO Speed 		443 MB/s Faster peak mixed IO speed.
+16% 		382 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		49.7 MB/s +4% 47.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		446 MB/s 458 MB/s +3%
Value & Sentiment 
+28%
Market Share
Based on 75,658,602 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.04 % Hugely higher market share.
+300%
Value
Value For Money 		22.3 % Hugely better value.
+127% 		9.84 %
User Rating
UBM User Rating 		51 % 55 % Slightly more popular.
+8%
Price
Price (score) 		$43 Much cheaper.
+68% 		$134
Nice To Haves 
+0%
Age
Newest 		80 Months More recent.
+28% 		111 Months
DQ Read
Peak 4K-64Thread Read Speed 		316 MB/s 378 MB/s Faster peak deep queue read.
+20%
DQ Write
Peak 4K-64Thread Write Speed 		363 MB/s 364 MB/s +0%
AS-SSD Total
AS-SSD Total Score 		1,143 Pts 1,234 Pts Slightly stronger server IO.
+8%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		299 MB/s Faster peak deep queue mixed IO.
+16% 		258 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		280 MB/s 323 MB/s Faster deep queue read.
+15%
ADQ Write
Avg. 4K-64Thread Write Speed 		279 MB/s 297 MB/s Slightly faster deep queue write.
+6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		243 MB/s Slightly faster deep queue mixed IO.
+9% 		222 MB/s
Specifications 
Capacity
Capacity 		240GB 250GB
Conclusion 
Average Bench 94.5%
Average Bench 94.8%
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Crucial’s BX300 SSD is a 3D MLC entry level SSD, with debut pricing in line with the Samsung's 850 Evo, the current market leader. The BX300 is one of the faster consumer SSDs available, with a 2% performance improvement over Crucial’s older MLC based MX200 and a 25% performance improvement over the TLC based MX300 which are both from Crucial’s more expensive MX product line. MLC NAND offers more consistent performance and has higher endurance than TLC NAND. Although Samsung’s 850 Evo (which is based on proprietary TLC V-NAND) has a 10% effective speed advantage over the BX300 the BX300 wins on write consistency. The 240GB BX300 has a three year warranty or 80 Terabytes Written (TBW) compared to five years or 75 (TBW) for the 250 GB 850 Evo. This makes for an interesting choice between the BX300 and the 850 Evo. Each model has an SLC cache which is proportional to its capacity, as a result the larger capacities offer better performance. The 120 GB BX300 has a 4 GB SLC cache, the 240 GB has 8 GB and the 480 GB has 16 GB. SLC caches improve burst write performance beyond the already respectable MLC write performance. Unfortunately, at least for now, the BX300 only comes in modest capacities, with the largest being 480 GB. For write consistency, thanks to its MLC NAND, the BX300 punches well above its price point. [Nov '17 SSDrivePro]

MORE DETAILS

The 250GB Crucial MX200 is successor to the hugely successful MX100. Both drives use the same NAND and controller but the new MX200 features Dynamic Write Acceleration (DWA) which is a new dynamically sized SLC cache. Samsung were the first to introduce SLC caching on the 840 Evo nearly two years ago so Crucial are somewhat late to the party. SLC caches generally only help performance in corner case real word scenarios and benchmarks. I prefer drives without SLC caches because they offer more consistent and sustainable real world IO. Comparing the MX100 and MX200 shows that the newer MX200 has a significantly faster peak write speed which is of course explained by the new DWA cache. Price is the deciding factor between the MX100 and MX200 so although the MX200 isn't priced aggressively yet, it will almost certainly move up the value rankings when retailers build stocks and subsequently cut prices. [Feb '15 SSDrivePro]

MORE DETAILS

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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.

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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?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair 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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