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CrucialCT128MX100SSD1
$74
AdataASU800SS-2TT-C
▲ 521,170 ▼
 $74 

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

VS
▲ 505 ▼

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC NAND. Release date ≈ Q3 2018.

Effective Speed 
+40%
Real World Speed
Performance profile from 12,493 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
2,601 User Benchmarks
Best Bench: 127% 1.5TB free
Worst Bench: 78% 587GB free
Poor: 78% Great: 127%
SPEED RANK: 233rd / 1080
Effective Speed
Effective SSD Speed 		75.9 % 106 % Much faster effective speed.
+40%
Average Score 
+69%
Read
Avg. Sequential Read Speed 		431 MB/s 479 MB/s Faster read speed.
+11%
Write
Avg. Sequential Write Speed 		179 MB/s 426 MB/s Hugely faster write speed.
+138%
4K Read
Avg. 4K Random Read Speed 		26.6 MB/s 32.9 MB/s Faster random read.
+24%
4K Write
Avg. 4K Random Write Speed 		87.1 MB/s +2% 85.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		217 MB/s 379 MB/s Much faster mixed IO speed.
+75%
4K Mixed
Avg. 4K Random Mixed IO Speed 		35 MB/s 46.1 MB/s Much faster random mixed IO.
+32%
SusWrite
Avg. Sustained Write Speed 		139 MB/s 421 MB/s Hugely faster sustained write speed.
+203%
Peak Score 
+70%
Read
Peak Sequential Read Speed 		473 MB/s 517 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed 		187 MB/s 482 MB/s Hugely faster peak write speed.
+158%
4K Read
Peak 4K Random Read Speed 		30.5 MB/s 41.5 MB/s Much faster peak random read.
+36%
4K Write
Peak 4K Random Write Speed 		121 MB/s +1% 120 MB/s
Mixed
Peak Sequential Mixed IO Speed 		233 MB/s 428 MB/s Hugely faster peak mixed IO speed.
+84%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.7 MB/s 58.7 MB/s Much faster peak random mixed IO.
+41%
SusWrite
Peak Sequential Sustained Write 60s Average 		184 MB/s 479 MB/s Hugely faster peak sustained write speed.
+160%
Value & Sentiment 
+6%
Market Share
Based on 77,611,912 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.01 %
Value
Value For Money 		7.44 % 16 % Hugely better value.
+115%
User Rating
UBM User Rating 		52 % +4% 50 %
Price
Price (score) 		$74 Hugely cheaper.
+89% 		$668
Nice To Haves 
+56%
Age
Newest 		125 Months 74+ Months Much more recent.
+41%
DQ Read
Peak 4K-64Thread Read Speed 		316 MB/s 393 MB/s Faster peak deep queue read.
+24%
DQ Write
Peak 4K-64Thread Write Speed 		186 MB/s 370 MB/s Hugely faster peak deep queue write.
+99%
AS-SSD Total
AS-SSD Total Score 		917 Pts 1,286 Pts Much stronger server IO.
+40%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		170 MB/s 314 MB/s Hugely faster peak deep queue mixed IO.
+85%
ADQ Read
Avg. 4K-64Thread Read Speed 		286 MB/s 331 MB/s Faster deep queue read.
+16%
ADQ Write
Avg. 4K-64Thread Write Speed 		159 MB/s 284 MB/s Much faster deep queue write.
+79%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		151 MB/s 245 MB/s Much faster deep queue mixed IO.
+62%
Specifications 
Capacity
Capacity 		128GB 2TB
Conclusion 
Average Bench 75.9%
Average Bench 106%

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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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.
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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?
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ALL FAQs »

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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 $154Nvidia 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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