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AdataASU800SS-1TT-C
OCZVTX450-25SAT3-256G
$206
▲ 5273 ▼

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

VS
▲ 51921 ▼
 $206 

Controller: Indilinx Barefoot 3 M10 IDX500M10-BC. Flash Memory: IMFT Synchronous 20nm MLC. Release date: Q2 2013.

Effective Speed 
+21%
Real World Speed
Performance profile from 26,548 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
409 User Benchmarks
Best Bench: 105% 113GB free
Worst Bench: 62% 192GB free (System drive)
Poor: 62% Great: 105%
SPEED RANK: 389th / 1080
Effective Speed
Effective SSD Speed 		104 % Faster effective speed.
+21% 		86.4 %
Average Score 
+23%
Read
Avg. Sequential Read Speed 		476 MB/s Slightly faster read speed.
+8% 		441 MB/s
Write
Avg. Sequential Write Speed 		422 MB/s 438 MB/s +4%
4K Read
Avg. 4K Random Read Speed 		32.8 MB/s Much faster random read.
+69% 		19.4 MB/s
4K Write
Avg. 4K Random Write Speed 		88.1 MB/s Slightly faster random write.
+6% 		83.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		388 MB/s +0% 387 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		46.4 MB/s Much faster random mixed IO.
+78% 		26 MB/s
SusWrite
Avg. Sustained Write Speed 		386 MB/s +4% 371 MB/s
Peak Score 
+18%
Read
Peak Sequential Read Speed 		517 MB/s +1% 511 MB/s
Write
Peak Sequential Write Speed 		477 MB/s 494 MB/s +4%
4K Read
Peak 4K Random Read Speed 		41.2 MB/s Much faster peak random read.
+78% 		23.2 MB/s
4K Write
Peak 4K Random Write Speed 		120 MB/s 127 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		431 MB/s 494 MB/s Faster peak mixed IO speed.
+15%
4K Mixed
Peak 4K Random Mixed IO Speed 		59.2 MB/s Much faster peak random mixed IO.
+73% 		34.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		464 MB/s 467 MB/s +1%
Value & Sentiment 
+∞%
Market Share
Based on 76,181,811 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		40.3 % Hugely better value.
+509% 		6.61 %
User Rating
UBM User Rating 		52 % +2% 51 %
Price
Price (score) 		$95 Much cheaper.
+54% 		$206
Nice To Haves 
+11%
Age
Newest 		93 Months Much more recent.
+30% 		133 Months
DQ Read
Peak 4K-64Thread Read Speed 		390 MB/s Faster peak deep queue read.
+16% 		335 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		363 MB/s +0% 362 MB/s
AS-SSD Total
AS-SSD Total Score 		1,274 Pts Slightly stronger server IO.
+10% 		1,163 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		299 MB/s +0% 298 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		306 MB/s Faster deep queue read.
+24% 		247 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		279 MB/s Slightly faster deep queue write.
+7% 		261 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		167 MB/s +3% 162 MB/s
Specifications 
Capacity
Capacity 		1TB 256GB
Conclusion 
Average Bench 104%
Average Bench 86.4%
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The Vertex 450 is the third SSD OCZ have released in the last eighteen months. The 450 features an updated version of the now somewhat proven Indilinx Barefoot controller which was first seen in the Vector just over 9 Months ago. The core performance figures for the Vertex 450 are disappointingly weaker, albeit marginally, than both the Vector (by 16%) and the Vertex 4 (by 11%). The Vertex 450 is currently retailing for more than the Vertex 4 and roughly the same as the better performing Vector so the 450 cannot be recommended at this time. That said the 450 is still amongst the top ten SSDs currently on the market and will be well worth consideration when prices drop after retailers have had a chance to build up stock. [Sep '13 SSDrivePro]

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