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CrucialCT128MX100SSD1
$74
AdataASU800SS-512GT-C
▲ 521,170 ▼
 $74 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q2 2014.

VS
▲ 53184 ▼

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC NAND. Release date: Q3 2016.

Effective Speed 
+37%
Real World Speed
Performance profile from 41,172 user samples
Benchmark your SSD here
9,892 User Benchmarks
Best Bench: 89% 42GB free
Worst Bench: 56% 119GB free
Poor: 56% Great: 89%
SPEED RANK: 566th / 1080
31,280 User Benchmarks
Best Bench: 127% 407GB free (System drive)
Worst Bench: 71% 309GB free (System drive)
Poor: 71% Great: 127%
SPEED RANK: 248th / 1080
Effective Speed
Effective SSD Speed 		75.9 % 104 % Much faster effective speed.
+37%
Average Score 
+63%
Read
Avg. Sequential Read Speed 		431 MB/s 476 MB/s Faster read speed.
+10%
Write
Avg. Sequential Write Speed 		179 MB/s 415 MB/s Hugely faster write speed.
+132%
4K Read
Avg. 4K Random Read Speed 		26.6 MB/s 33.3 MB/s Faster random read.
+25%
4K Write
Avg. 4K Random Write Speed 		87.1 MB/s +1% 86.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		217 MB/s 385 MB/s Much faster mixed IO speed.
+77%
4K Mixed
Avg. 4K Random Mixed IO Speed 		35 MB/s 46.9 MB/s Much faster random mixed IO.
+34%
SusWrite
Avg. Sustained Write Speed 		139 MB/s 361 MB/s Hugely faster sustained write speed.
+160%
Peak Score 
+72%
Read
Peak Sequential Read Speed 		473 MB/s 518 MB/s Slightly faster peak read speed.
+10%
Write
Peak Sequential Write Speed 		187 MB/s 477 MB/s Hugely faster peak write speed.
+155%
4K Read
Peak 4K Random Read Speed 		30.5 MB/s 43.8 MB/s Much faster peak random read.
+44%
4K Write
Peak 4K Random Write Speed 		121 MB/s +2% 119 MB/s
Mixed
Peak Sequential Mixed IO Speed 		233 MB/s 449 MB/s Hugely faster peak mixed IO speed.
+93%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.7 MB/s 61 MB/s Much faster peak random mixed IO.
+46%
SusWrite
Peak Sequential Sustained Write 60s Average 		184 MB/s 470 MB/s Hugely faster peak sustained write speed.
+155%
Value & Sentiment 
+256%
Market Share
Based on 77,609,383 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 		7.44 % 56.7 % Hugely better value.
+662%
User Rating
UBM User Rating 		52 % 53 % +2%
Price
Price (score) 		$74 $30 Much cheaper.
+59%
Nice To Haves 
+47%
Age
Newest 		125 Months 98 Months More recent.
+22%
DQ Read
Peak 4K-64Thread Read Speed 		316 MB/s 391 MB/s Faster peak deep queue read.
+24%
DQ Write
Peak 4K-64Thread Write Speed 		186 MB/s 364 MB/s Hugely faster peak deep queue write.
+96%
AS-SSD Total
AS-SSD Total Score 		917 Pts 1,280 Pts Much stronger server IO.
+40%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		170 MB/s 297 MB/s Much faster peak deep queue mixed IO.
+75%
ADQ Read
Avg. 4K-64Thread Read Speed 		286 MB/s 333 MB/s Faster deep queue read.
+16%
ADQ Write
Avg. 4K-64Thread Write Speed 		159 MB/s 298 MB/s Hugely faster deep queue write.
+87%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		151 MB/s 182 MB/s Faster deep queue mixed IO.
+21%
Specifications 
Capacity
Capacity 		128GB 512GB
Conclusion 
Average Bench 75.9%
Average Bench 104%

The Crucial 128GB MX100 has the smallest capacity and is the slowest of the MX100 range. Comparing the 128GB and 256GB MX100s shows that the 256GB version has a 75% faster write speed. Within the MX100 range write speeds scale linearly with capacity, as a consequence, the 128GB version struggles to compete with similarly priced drives from other manufacturers. On the other hand, the 512GB version and to a lesser extent the 256GB version offer far better value for money. Overall the MX100 has an effective speed which is amongst the top 30% of 128GB drives so its not bad by any means but there are however both cheaper and faster alternatives available in the now extremely competitive 128GB SSD category. [Oct '14 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our 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]

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.
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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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 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 »

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Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $155Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $320
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