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SamsungMZ-7KE512BW
AdataASP900S3-512GM-C
▲ 566,204 ▼

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

VS
▲ 500 ▼
  

Controller: LSI SandForce SF2281. NAND Flash: Intel Micron Synchronous 25nm MLC. Release date ≈ Q3 2014.

Effective Speed 
+85%
Real World Speed
Performance profile from 69,775 user samples
Benchmark your SSD here
68,849 User Benchmarks
Best Bench: 124% 397GB free
Worst Bench: 71% 267GB free (System drive)
Poor: 71% Great: 124%
SPEED RANK: 257th / 1080
926 User Benchmarks
Best Bench: 65% 188GB free
Worst Bench: 42% 402GB free (System drive)
Poor: 42% Great: 65%
SPEED RANK: 863rd / 1080
Effective Speed
Effective SSD Speed 		102 % Hugely faster effective speed.
+85% 		54.8 %
Average Score 
+109%
Read
Avg. Sequential Read Speed 		465 MB/s Faster read speed.
+21% 		383 MB/s
Write
Avg. Sequential Write Speed 		408 MB/s Much faster write speed.
+73% 		236 MB/s
4K Read
Avg. 4K Random Read Speed 		33.1 MB/s Much faster random read.
+40% 		23.6 MB/s
4K Write
Avg. 4K Random Write Speed 		86.9 MB/s Hugely faster random write.
+394% 		17.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		349 MB/s Much faster mixed IO speed.
+33% 		262 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		43.7 MB/s Hugely faster random mixed IO.
+113% 		20.5 MB/s
SusWrite
Avg. Sustained Write Speed 		364 MB/s Hugely faster sustained write speed.
+91% 		191 MB/s
Peak Score 
+116%
Read
Peak Sequential Read Speed 		515 MB/s Faster peak read speed.
+11% 		464 MB/s
Write
Peak Sequential Write Speed 		486 MB/s Much faster peak write speed.
+45% 		336 MB/s
4K Read
Peak 4K Random Read Speed 		42.7 MB/s Much faster peak random read.
+46% 		29.2 MB/s
4K Write
Peak 4K Random Write Speed 		122 MB/s Hugely faster peak random write.
+475% 		21.2 MB/s
Mixed
Peak Sequential Mixed IO Speed 		399 MB/s Faster peak mixed IO speed.
+22% 		328 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		57.4 MB/s Hugely faster peak random mixed IO.
+136% 		24.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		487 MB/s Much faster peak sustained write speed.
+79% 		272 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,579,690 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.05 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		56 % More popular.
+12% 		50 %
Nice To Haves 
+133%
Age
Newest 		124 Months 121+ Months +2%
DQ Read
Peak 4K-64Thread Read Speed 		388 MB/s Much faster peak deep queue read.
+75% 		222 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		360 MB/s Hugely faster peak deep queue write.
+233% 		108 MB/s
AS-SSD Total
AS-SSD Total Score 		1,274 Pts Hugely stronger server IO.
+106% 		617 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		365 MB/s Hugely faster peak deep queue mixed IO.
+164% 		138 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		337 MB/s Hugely faster deep queue read.
+88% 		179 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		279 MB/s Hugely faster deep queue write.
+222% 		86.7 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		295 MB/s Hugely faster deep queue mixed IO.
+181% 		105 MB/s
Specifications 
Capacity
Capacity 		512GB 512GB
User Builds 
68,849
926
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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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  • - CPU tests include: integer, floating and string
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  • - Reports are generated and presented on userbenchmark.com
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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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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-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $389
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