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KingstonSV300S37A/120G
AdataASP900S3-512GM-C
▲ 545,433 ▼

Controller: LSI SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode MLC. Release date: Q4 2012.

VS
▲ 500 ▼
  

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

Effective Speed 
+2%
Real World Speed
Performance profile from 339,946 user samples
Benchmark your SSD here
339,020 User Benchmarks
Best Bench: 73% 15GB free
Worst Bench: 30% 77GB free (System drive)
Poor: 30% Great: 73%
SPEED RANK: 875th / 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 		53.6 % 54.8 % +2%
Average Score 
+2%
Read
Avg. Sequential Read Speed 		227 MB/s 383 MB/s Much faster read speed.
+69%
Write
Avg. Sequential Write Speed 		122 MB/s 236 MB/s Hugely faster write speed.
+93%
4K Read
Avg. 4K Random Read Speed 		22.9 MB/s 23.6 MB/s +3%
4K Write
Avg. 4K Random Write Speed 		73.9 MB/s Hugely faster random write.
+320% 		17.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		155 MB/s 262 MB/s Much faster mixed IO speed.
+69%
4K Mixed
Avg. 4K Random Mixed IO Speed 		29.4 MB/s Much faster random mixed IO.
+43% 		20.5 MB/s
SusWrite
Avg. Sustained Write Speed 		88.3 MB/s 191 MB/s Hugely faster sustained write speed.
+116%
Peak Score 
+25%
Read
Peak Sequential Read Speed 		385 MB/s 464 MB/s Faster peak read speed.
+21%
Write
Peak Sequential Write Speed 		153 MB/s 336 MB/s Hugely faster peak write speed.
+120%
4K Read
Peak 4K Random Read Speed 		32.1 MB/s Slightly faster peak random read.
+10% 		29.2 MB/s
4K Write
Peak 4K Random Write Speed 		108 MB/s Hugely faster peak random write.
+409% 		21.2 MB/s
Mixed
Peak Sequential Mixed IO Speed 		204 MB/s 328 MB/s Much faster peak mixed IO speed.
+61%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.4 MB/s Much faster peak random mixed IO.
+70% 		24.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		127 MB/s 272 MB/s Hugely faster peak sustained write speed.
+114%
Value & Sentiment 
+∞%
Market Share
Based on 77,579,049 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.12 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		54 % Slightly more popular.
+8% 		50 %
Nice To Haves 
+5%
Age
Newest 		144 Months 121+ Months More recent.
+16%
DQ Read
Peak 4K-64Thread Read Speed 		195 MB/s 222 MB/s Faster peak deep queue read.
+14%
DQ Write
Peak 4K-64Thread Write Speed 		153 MB/s Much faster peak deep queue write.
+42% 		108 MB/s
AS-SSD Total
AS-SSD Total Score 		679 Pts Stronger server IO.
+10% 		617 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		133 MB/s 138 MB/s +4%
ADQ Read
Avg. 4K-64Thread Read Speed 		101 MB/s 179 MB/s Much faster deep queue read.
+77%
ADQ Write
Avg. 4K-64Thread Write Speed 		118 MB/s Much faster deep queue write.
+36% 		86.7 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		91.6 MB/s 105 MB/s Faster deep queue mixed IO.
+15%
Specifications 
Capacity
Capacity 		120GB 512GB
Conclusion 
Average Bench 53.6%
Average Bench 54.8%

The 120GB Kingston V300 has a performance profile that closely matches its 240GB sibling. Both drives utilize a Sandforce LSI controller and therefore demonstrate relative weakness in their write speeds. With burst sequential read/write speeds of 497/166 MBps and 4k burst read/write speeds of 30/97 MBps the 120GB V300 is amongst the slower SSDs I have seen. A concern I have with this drive is the relatively slow real world speeds our users have experienced. Most drives have average throughput rates that are around 75% of peak. Both this and the 240GB V300s, based on 130 samples, are averaging sequential read rates of around 240 MBps which is less than 50% of peak. It's not all bad news though because the V300's are priced extremely aggressively and as a result still offer decent value for money. [Feb '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]

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Solid State Drives
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