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KingstonSUV400S37/480G
KingstonSV300S37A/120G
▲ 5139 ▼

Release date ≈ Q2 2016.

VS
▲ 545,433 ▼

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

Effective Speed 
+36%
Real World Speed
Performance profile from 363,027 user samples
Benchmark your SSD here
24,007 User Benchmarks
Best Bench: 92% 444GB free
Worst Bench: 50% 294GB free (System drive)
Poor: 50% Great: 92%
SPEED RANK: 624th / 1080
339,020 User Benchmarks
Best Bench: 73% 15GB free
Worst Bench: 30% 77GB free (System drive)
Poor: 30% Great: 73%
SPEED RANK: 875th / 1080
Effective Speed
Effective SSD Speed 		72.8 % Much faster effective speed.
+36% 		53.6 %
Average Score 
+68%
Read
Avg. Sequential Read Speed 		448 MB/s Hugely faster read speed.
+97% 		227 MB/s
Write
Avg. Sequential Write Speed 		414 MB/s Hugely faster write speed.
+239% 		122 MB/s
4K Read
Avg. 4K Random Read Speed 		23.9 MB/s +4% 22.9 MB/s
4K Write
Avg. 4K Random Write Speed 		66.6 MB/s 73.9 MB/s Faster random write.
+11%
Mixed
Avg. Sequential Mixed IO Speed 		222 MB/s Much faster mixed IO speed.
+43% 		155 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		29.1 MB/s 29.4 MB/s +1%
SusWrite
Avg. Sustained Write Speed 		181 MB/s Hugely faster sustained write speed.
+105% 		88.3 MB/s
Peak Score 
+53%
Read
Peak Sequential Read Speed 		504 MB/s Much faster peak read speed.
+31% 		385 MB/s
Write
Peak Sequential Write Speed 		470 MB/s Hugely faster peak write speed.
+207% 		153 MB/s
4K Read
Peak 4K Random Read Speed 		32.6 MB/s +2% 32.1 MB/s
4K Write
Peak 4K Random Write Speed 		97.1 MB/s 108 MB/s Faster peak random write.
+11%
Mixed
Peak Sequential Mixed IO Speed 		360 MB/s Much faster peak mixed IO speed.
+76% 		204 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		41.3 MB/s 41.4 MB/s +0%
SusWrite
Peak Sequential Sustained Write 60s Average 		213 MB/s Much faster peak sustained write speed.
+68% 		127 MB/s
Value & Sentiment 
+242%
Market Share
Based on 76,301,231 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.2 % Hugely higher market share.
+900%
Value
Value For Money 		10.1 % Better value.
+16% 		8.68 %
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$175 $36 Much cheaper.
+80%
Nice To Haves 
+72%
Age
Newest 		97+ Months Much more recent.
+31% 		140 Months
DQ Read
Peak 4K-64Thread Read Speed 		327 MB/s Much faster peak deep queue read.
+68% 		195 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		287 MB/s Hugely faster peak deep queue write.
+88% 		153 MB/s
AS-SSD Total
AS-SSD Total Score 		1,061 Pts Much stronger server IO.
+56% 		679 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		186 MB/s Much faster peak deep queue mixed IO.
+40% 		133 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		274 MB/s Hugely faster deep queue read.
+171% 		101 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		199 MB/s Much faster deep queue write.
+69% 		118 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		144 MB/s Much faster deep queue mixed IO.
+57% 		91.6 MB/s
Specifications 
Capacity
Capacity 		480GB 120GB
Conclusion 
Average Bench 72.8%
Average Bench 53.6%
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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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