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AdataASU800SS-1TT-C
OCZVTX460A-25SAT3-240G
▲ 5273 ▼

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

VS
▲ 53539 ▼

Controller: Indilinx Barefoot 3 M10. Flash Memory: Toshiba 19nm MLC. Release date: Q4 2014.

Effective Speed 
+13%
Real World Speed
Performance profile from 27,225 user samples
Benchmark your SSD here
26,139 User Benchmarks
Best Bench: 126% 349GB free
Worst Bench: 78% 276GB free (System drive)
Poor: 78% Great: 126%
SPEED RANK: 246th / 1080
1,086 User Benchmarks
Best Bench: 108% 88GB free
Worst Bench: 68% 143GB free
Poor: 68% Great: 108%
SPEED RANK: 315th / 1080
Effective Speed
Effective SSD Speed 		104 % Faster effective speed.
+13% 		92.1 %
Average Score 
+16%
Read
Avg. Sequential Read Speed 		476 MB/s Faster read speed.
+20% 		397 MB/s
Write
Avg. Sequential Write Speed 		422 MB/s 429 MB/s +2%
4K Read
Avg. 4K Random Read Speed 		32.8 MB/s Much faster random read.
+37% 		23.9 MB/s
4K Write
Avg. 4K Random Write Speed 		88.1 MB/s 88.3 MB/s +0%
Mixed
Avg. Sequential Mixed IO Speed 		388 MB/s Faster mixed IO speed.
+22% 		317 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		46.4 MB/s Much faster random mixed IO.
+39% 		33.3 MB/s
SusWrite
Avg. Sustained Write Speed 		386 MB/s 399 MB/s +3%
Peak Score 
+18%
Read
Peak Sequential Read Speed 		517 MB/s Faster peak read speed.
+18% 		440 MB/s
Write
Peak Sequential Write Speed 		477 MB/s 486 MB/s +2%
4K Read
Peak 4K Random Read Speed 		41.2 MB/s Much faster peak random read.
+48% 		27.9 MB/s
4K Write
Peak 4K Random Write Speed 		120 MB/s 128 MB/s Slightly faster peak random write.
+7%
Mixed
Peak Sequential Mixed IO Speed 		431 MB/s Faster peak mixed IO speed.
+23% 		349 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		59.2 MB/s Much faster peak random mixed IO.
+48% 		40 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		464 MB/s +0% 463 MB/s
Value & Sentiment 
+195%
Market Share
Based on 76,294,082 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % Hugely higher market share.
+300% 		0.01 %
Value
Value For Money 		40.3 % Hugely better value.
+435% 		7.53 %
User Rating
UBM User Rating 		52 % 53 % +2%
Price
Price (score) 		$95 Much cheaper.
+46% 		$177
Nice To Haves 
+1%
Age
Newest 		94 Months More recent.
+19% 		116 Months
DQ Read
Peak 4K-64Thread Read Speed 		390 MB/s Slightly faster peak deep queue read.
+9% 		357 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		363 MB/s 370 MB/s +2%
AS-SSD Total
AS-SSD Total Score 		1,274 Pts Slightly stronger server IO.
+6% 		1,206 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		299 MB/s Slightly faster peak deep queue mixed IO.
+5% 		284 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		306 MB/s +2% 301 MB/s
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 		167 MB/s 241 MB/s Much faster deep queue mixed IO.
+44%
Specifications 
Capacity
Capacity 		1TB 240GB
Conclusion 
Average Bench 104%
Average Bench 92.1%
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The OCZ Vertex 460A is basically a tweaked re-release of last years Vertex 460. The two drives share the same controller and the same basic NAND, although the 460A apparently uses a newer version of Toshiba's 19nm MLC. Unsurprisingly there is little difference in performance between the 460 and 460A. In absolute terms, with peak sequential read/write speeds of 516/500 MBps and peak 4K random read/write speeds of 25/120 MB/s the 460A does have a rock solid performance profile but OCZ cannot afford to re-release 12 month old technology, at least not of they want to continue to compete with the likes of Samsung, SanDisk and Crucial who are continuously innovating. Overall the 240GB 460A still sits amongst the top handful of drives both in terms of outright performance and value for money. [Jan '15 SSDrivePro]

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