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Compressible Data Test

As you will have gathered from the previous page, we measured the performance of each drive using two different programs: CrystalDiskMark and Iometer.

It’s important to note that we connected the SSDs to a SATA-600 port on our motherboard rather than a SATA-300 port, which could cause performance limitations.

We set CrystalDiskMark to “All 0x00 Fill mode” to evaluate the performance of the SSD when dealing with compressible data.

Corsair Neutron 240 GB vs. OCZ Agility 4 256 GB SSD Review

In the sequential read test, the Corsair Neutron achieved 22 percent better performance than the OCZ Agility 4. However, in the sequential write test, the OCZ Agility 4 performed the best, beating the Corsair Neutron by 11 percent.

Corsair Neutron 240 GB vs. OCZ Agility 4 256 GB SSD Review

Moving on to the random read test using 512 kB blocks, the Corsair Neutron offered the best performance, beating the OCZ Agility 4 by 81%. However, in the random write test using 512 kB blocks, the OCZ Agility 4 beat the Corsair Neutron by 11%.

Corsair Neutron 240 GB vs. OCZ Agility 4 256 GB SSD Review

In the random read test using 4 kB blocks, the Corsair Neutron beat the OCZ Agility 4 by 25 percent. However, in the random write test using 4 kB blocks, the OCZ Agility 4 beat the Corsair Neutron by a margin of 56 percent.

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Henry has been taking apart computers since the age of 10, which eventually lead to a career in technology journalism. He's written for numerous leading UK technology websites as well as writing advisory articles for Best Buy.