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OCZ VX500 256GB, 512GB & 1TB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Sep 13, 2016 6:29 pm
TweakTown Rating: 93%Manufacturer: OCZ



Version and / or Patch Used: 3.0 Technical Preview


CrystalDiskMark is disk benchmark software that allows us to benchmark 4k and 4k queue depths with accuracy. Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at QD4.







Like the Toshiba Q300 Pro, the OCZ VX500 is not a synthetic powerhouse, and we are fine with that because moderate workload performance is much more important to the average user. So how does an SSD with such low 4K QD1 read performance tear it up in our moderate workload performance testing? Simply because the VX500 excels with mixed random/sequential workloads.




The lack of a DRAM cache manifests itself more on the 512GB VX500 because there is more data to keep track of. This is why the 256GB VX500 delivers far better random write performance. The small DRAM cache on the 1TB keeps random write performance in line with the 512GB model. Without a bit of DRAM onboard, the 1TB model would have even lower random write performance.





Version and / or Patch Used: 1.8.5611.39791


AS SSD determines the performance of SSDs. The tool contains four synthetic as well as three practice tests. The synthetic tests are to determine the sequential and random read and write performance of the SSD.






AS SSD is a demanding test. The lack of a DRAM cache again manifests itself with lower total scores than the rest of the drives in our test pool. No worries though because our moderate workload testing is coming up next.

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