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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

ATTO

 

Version and / or Patch Used: 2.47

 

ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products.

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_16

 

 

Compressible sequential read/write transfers max out at 554/518 MB/s. Keep in mind this is our OS volume, and it is filled to 75% of its total capacity. Write performance ramps up quickly. Maximum sequential read performance is achieved at a 512KB transfer size, maximum sequential write performance at 128KB transfers.

 

Sequential Write

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_17

 

All three capacity points follow a similar performance curve. All three lead the field at 4KB transfers.

 

Sequential Read

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_18

 

With the exception of Crucial's MX300, the rest of the drives in our test pool deliver better sequential read performance for the majority of the transfer sizes that ATTO tests.

 

 

Anvil Storage Utilities

 

Version and / or Patch Used: 1.1.0

 

Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSDs. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4k QD16.

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_19

 

Scoring

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_20

 

Anvil's scoring typically provides us with a good indication of a drive's overall performance. With OCZ's VX500, this does not hold true as you will see when we get to our moderate workload testing.

 

(Anvil) Read IOPS through Queue Depth Scale

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_21

 

The VX500's lag behind the rest of the drives in our test pool until we hit QD32.

 

(Anvil) Write IOPS through Queue Scale

 

ocz-vx500-256gb-512gb-1tb-sata-iii-ssd-review_22

 

The lack of a DRAM cache or the implementation of a very small DRAM cache package takes its toll on the VX500's random write performance.

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