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ADATA XPG SX900 128GB with SandForce B02 controller SSD Review (Page 11)

By Chris Ramseyer from Apr 10, 2013 @ 1:01 CDT
TweakTown Rating: 92%Manufacturer: ADATA

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

SSDs 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. SSDs 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.

adata_xpg_sx900_128gb_with_sandforce_b02_controller_ssd_review_64

SandForce based drives have always done well in our real world with real world data on disk test. No, that wasn't a typo. These are real world tests with data on them just like SSDs are asked to perform in your real world computer environment. The SandForce architecture compresses the data it can before storing it on the flash.

As flash fills the drives become slower so the less data you have on it, the faster it remains. This is one of the main reason why the SF-2281 is still a performance controller even after hitting the market over two years ago.

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