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OCZAGT4-25SAT3-256G
KingstonSV300S37A/60G
▲ 51500 ▼

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

VS
▲ 5056 ▼

Controller: LSI SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode MLC. Release date ≤ Q4 2013.

Effective Speed 
+51%
Real World Speed
Performance profile from 25,635 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
24,219 User Benchmarks
Best Bench: 69% 20GB free
Worst Bench: 27% 14GB free (System drive)
Poor: 27% Great: 69%
SPEED RANK: 904th / 1080
Effective Speed
Effective SSD Speed 		72.3 % Much faster effective speed.
+51% 		48 %
Average Score 
+106%
Read
Avg. Sequential Read Speed 		276 MB/s Slightly faster read speed.
+6% 		260 MB/s
Write
Avg. Sequential Write Speed 		304 MB/s Hugely faster write speed.
+303% 		75.4 MB/s
4K Read
Avg. 4K Random Read Speed 		18.4 MB/s 23.4 MB/s Faster random read.
+27%
4K Write
Avg. 4K Random Write Speed 		94.5 MB/s Much faster random write.
+76% 		53.8 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		193 MB/s Much faster mixed IO speed.
+72% 		112 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		27 MB/s +2% 26.4 MB/s
SusWrite
Avg. Sustained Write Speed 		275 MB/s Hugely faster sustained write speed.
+307% 		67.5 MB/s
Peak Score 
+67%
Read
Peak Sequential Read Speed 		336 MB/s 414 MB/s Faster peak read speed.
+23%
Write
Peak Sequential Write Speed 		391 MB/s Hugely faster peak write speed.
+208% 		127 MB/s
4K Read
Peak 4K Random Read Speed 		21.3 MB/s 34 MB/s Much faster peak random read.
+60%
4K Write
Peak 4K Random Write Speed 		131 MB/s Much faster peak random write.
+64% 		79.9 MB/s
Mixed
Peak Sequential Mixed IO Speed 		236 MB/s Much faster peak mixed IO speed.
+33% 		177 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		31.8 MB/s 39.2 MB/s Faster peak random mixed IO.
+23%
SusWrite
Peak Sequential Sustained Write 60s Average 		382 MB/s Hugely faster peak sustained write speed.
+271% 		103 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 %
Value
Value For Money 		20.9 % Hugely better value.
+702% 		2.61 %
User Rating
UBM User Rating 		51 % +2% 50 %
Price
Price (score) 		$35 Much cheaper.
+54% 		$76
Nice To Haves 
+130%
Age
Newest 		145 Months 126+ Months More recent.
+13%
DQ Read
Peak 4K-64Thread Read Speed 		255 MB/s Hugely faster peak deep queue read.
+107% 		123 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		316 MB/s Hugely faster peak deep queue write.
+175% 		115 MB/s
AS-SSD Total
AS-SSD Total Score 		964 Pts Hugely stronger server IO.
+90% 		508 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		208 MB/s Hugely faster peak deep queue mixed IO.
+86% 		112 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		231 MB/s Hugely faster deep queue read.
+189% 		80 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		235 MB/s Hugely faster deep queue write.
+224% 		72.6 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		194 MB/s Hugely faster deep queue mixed IO.
+184% 		68.4 MB/s
Specifications 
Capacity
Capacity 		256GB 60GB
Conclusion 
Average Bench 72.3%
Average Bench 48%
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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]

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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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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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Storage Devices FAQ
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Solid State Drives
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