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OCZ Vertex 450 256GB SSD Review (Page 10)

By Chris Ramseyer from May 23, 2013 @ 7:45 CDT
TweakTown Rating: 92%Manufacturer: OCZ Technology

PCMark Vantage - Drives with Data Testing

For a complete breakdown on the Drives with Data Testing please read this article. You will be able to perform this test at home with the files provided in the article - full instructions are included.

- Brief Methodology

SSD's perform differently when used for a period of time and when data is already present on the drive. The purpose of the Drives with Data testing is to show how a drive performs in these 'dirty' states. SSD's also need time to recover, either with TRIM or onboard garbage collection methods.

Drives with Data Testing - 25%, 50%, 75% Full States and Dirty / Empty Test

Files needed for 60 (64GB), 120 (128GB), 240 (256GB)

60GB Fill - 15GB, 30GB, 45GB

120GB Fill - 30GB, 60GB, 90GB

240GB Fill - 60GB, 120GB, 160GB

Empty but Dirty - a test run just after the fill tests and shows if a drive needs time to recover or if performance is instantly restored.

ocz_vertex_450_256gb_ssd_review_64

Fill testing performance is much better than I anticipated going into the review. Vertex 450 256GB is actually faster than Vertex 3.20 240GB with both drives at half capacity. Given the SandForce architecture's advantage with compressible data, this surprised us. We rarely see apples to apples SandForce drives beaten in this test.

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