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OCZAGT4-25SAT3-256G
KingstonSV300S37A/120G
▲ 51500 ▼

Controller: Indilinx Everest 2 IDX400M00. Flash Memory: Micron Asynchronous 25nm MLC. Release date: Q2 2012.

VS
▲ 545,433 ▼

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

Effective Speed 
+35%
Real World Speed
Performance profile from 340,436 user samples
Benchmark your SSD here
1,416 User Benchmarks
Best Bench: 87% 238GB free
Worst Bench: 57% 185GB free (System drive)
Poor: 57% Great: 87%
SPEED RANK: 633rd / 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 		72.3 % Much faster effective speed.
+35% 		53.6 %
Average Score 
+57%
Read
Avg. Sequential Read Speed 		276 MB/s Faster read speed.
+22% 		227 MB/s
Write
Avg. Sequential Write Speed 		304 MB/s Hugely faster write speed.
+149% 		122 MB/s
4K Read
Avg. 4K Random Read Speed 		18.4 MB/s 22.9 MB/s Faster random read.
+24%
4K Write
Avg. 4K Random Write Speed 		94.5 MB/s Faster random write.
+28% 		73.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		193 MB/s Faster mixed IO speed.
+25% 		155 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		27 MB/s 29.4 MB/s Slightly faster random mixed IO.
+9%
SusWrite
Avg. Sustained Write Speed 		275 MB/s Hugely faster sustained write speed.
+211% 		88.3 MB/s
Peak Score 
+43%
Read
Peak Sequential Read Speed 		336 MB/s 385 MB/s Faster peak read speed.
+15%
Write
Peak Sequential Write Speed 		391 MB/s Hugely faster peak write speed.
+156% 		153 MB/s
4K Read
Peak 4K Random Read Speed 		21.3 MB/s 32.1 MB/s Much faster peak random read.
+51%
4K Write
Peak 4K Random Write Speed 		131 MB/s Faster peak random write.
+21% 		108 MB/s
Mixed
Peak Sequential Mixed IO Speed 		236 MB/s Faster peak mixed IO speed.
+16% 		204 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		31.8 MB/s 41.4 MB/s Much faster peak random mixed IO.
+30%
SusWrite
Peak Sequential Sustained Write 60s Average 		382 MB/s Hugely faster peak sustained write speed.
+201% 		127 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 76,285,252 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.2 % Insanely higher market share.
+∞%
Value
Value For Money 		20.9 % Hugely better value.
+141% 		8.68 %
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$35 +2% $36
Nice To Haves 
+71%
Age
Newest 		145 Months 139 Months +4%
DQ Read
Peak 4K-64Thread Read Speed 		255 MB/s Much faster peak deep queue read.
+31% 		195 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		316 MB/s Hugely faster peak deep queue write.
+107% 		153 MB/s
AS-SSD Total
AS-SSD Total Score 		964 Pts Much stronger server IO.
+42% 		679 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		208 MB/s Much faster peak deep queue mixed IO.
+56% 		133 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		231 MB/s Hugely faster deep queue read.
+129% 		101 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		235 MB/s Hugely faster deep queue write.
+99% 		118 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		194 MB/s Hugely faster deep queue mixed IO.
+112% 		91.6 MB/s
Specifications 
Capacity
Capacity 		256GB 120GB
Conclusion 
Average Bench 72.3%
Average Bench 53.6%
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The OCZ Agility 4 is a relatively old SSD and has been included in the group test as a reference. In terms of overall speed the Agility 4 lags the current ten market leaders by an average of around 30%, considering that the Agility 4 is only 16 months old this highlights just how quickly the SSD market has evolved over the last two years. It's probably not worth upgrading for the sake of more speed unless you have a specific use case that demands it but if you are looking for a speed upgrade, you will gain up to around 50% by going for the Samsung 840 Pro or the OCZ Vector. [Sep '13 SSDrivePro]

MORE DETAILS

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]

MORE DETAILS

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Solid State Drives
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