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OCZVTX4-25SAT3-256G
IntelSSDSA2CW120G3
▲ 531,525 ▼

Controller: Indilinx Everest 2 IDX400M00-BC. Flash Memory: Intel Synchronous 25nm MLC. Release date: Q2 2012.

VS
▲ 51498 ▼

Controller: Intel. Flash Memory: Intel 25nm MLC. Release date: Q1 2011.

Effective Speed 
+125%
Real World Speed
Performance profile from 22,006 user samples
Benchmark your SSD here
12,355 User Benchmarks
Best Bench: 106% 238GB free
Worst Bench: 68% 26GB free
Poor: 68% Great: 106%
SPEED RANK: 322nd / 1080
9,651 User Benchmarks
Best Bench: 48% 56GB free
Worst Bench: 29% 42GB free (System drive)
Poor: 29% Great: 48%
SPEED RANK: 955th / 1080
Effective Speed
Effective SSD Speed 		90.8 % Hugely faster effective speed.
+125% 		40.4 %
Average Score 
+133%
Read
Avg. Sequential Read Speed 		375 MB/s Much faster read speed.
+70% 		220 MB/s
Write
Avg. Sequential Write Speed 		392 MB/s Hugely faster write speed.
+209% 		127 MB/s
4K Read
Avg. 4K Random Read Speed 		27.4 MB/s Much faster random read.
+64% 		16.7 MB/s
4K Write
Avg. 4K Random Write Speed 		90.8 MB/s Hugely faster random write.
+186% 		31.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		266 MB/s Hugely faster mixed IO speed.
+99% 		134 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		34.5 MB/s Hugely faster random mixed IO.
+83% 		18.9 MB/s
SusWrite
Avg. Sustained Write Speed 		363 MB/s Hugely faster sustained write speed.
+221% 		113 MB/s
Peak Score 
+147%
Read
Peak Sequential Read Speed 		456 MB/s Much faster peak read speed.
+77% 		257 MB/s
Write
Peak Sequential Write Speed 		460 MB/s Hugely faster peak write speed.
+241% 		135 MB/s
4K Read
Peak 4K Random Read Speed 		33.7 MB/s Much faster peak random read.
+60% 		21 MB/s
4K Write
Peak 4K Random Write Speed 		132 MB/s Hugely faster peak random write.
+217% 		41.6 MB/s
Mixed
Peak Sequential Mixed IO Speed 		316 MB/s Hugely faster peak mixed IO speed.
+119% 		144 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		41.4 MB/s Hugely faster peak random mixed IO.
+80% 		23 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		448 MB/s Hugely faster peak sustained write speed.
+232% 		135 MB/s
Value & Sentiment 
+11%
Market Share
Based on 76,250,343 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.01 %
Value
Value For Money 		4.23 % Better value.
+29% 		3.29 %
User Rating
UBM User Rating 		53 % +4% 51 %
Price
Price (score) 		$400 $89 Much cheaper.
+78%
Nice To Haves 
+231%
Age
Newest 		146 Months Slightly more recent.
+8% 		159 Months
DQ Read
Peak 4K-64Thread Read Speed 		345 MB/s Hugely faster peak deep queue read.
+148% 		139 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		357 MB/s Hugely faster peak deep queue write.
+291% 		91.3 MB/s
AS-SSD Total
AS-SSD Total Score 		1,188 Pts Hugely stronger server IO.
+177% 		429 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		336 MB/s Hugely faster peak deep queue mixed IO.
+379% 		70.1 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		302 MB/s Hugely faster deep queue read.
+154% 		119 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		277 MB/s Hugely faster deep queue write.
+303% 		68.8 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		278 MB/s Hugely faster deep queue mixed IO.
+386% 		57.2 MB/s
Specifications 
Capacity
Capacity 		256GB 120GB
Conclusion 
Average Bench 90.8%
Average Bench 40.4%
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The Vertex 4 is just over a year old but thanks to its recent firmware update (1.5), it still manages to perform almost on a par with the best drives currently available. One of the striking aspects of the Vertex is its well-rounded performance profile. With an AS-SSD score of 1137 and a real world speed of 548 the Vertex 4 is able to cope extremely well with both server and consumer type workloads. This drive uses the new Indilux Everest 2 controller, which unlike the previous generations of this drive which used a SandForce controller, is able to cope admirably with both compressible and incompressible data. Overall, the Vertex 4 is a great performing SSD that said, there are better value for money (and younger) drives available, including the Vertex 4's own successor, the OCZ Vector. [Jun '13 SSDrivePro]

MORE DETAILS

The Intel 320 SSD uses a proprietary Intel controller which predates Intel's adoption of Sandforce controllers for their consumer SSDs. The 320 is nearly three years old and consequently has a particularly poor performance profile. With peak and average sequential read/write speeds of 260/135 and 208/107 MB/s the 120GB Intel 320 is about half as fast as the current group leaders. Peak small file 4K read/write speeds clock in at 19/37 MB/s, again around half as fast as the current group leaders. Overall the 120GB Intel 320 has an effective speed of 214 MB/s. Although these speeds are only around half as fast as current SSDs, they are still twice as fast sequentially and 15x faster than the fastest mechanical drives. [Feb '14 SSDrivePro]

MORE DETAILS

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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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 Frequently Asked Questions

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Solid State Drives
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