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.
Another area we like to talk about is performance when data is on the drive. It may seem simple, but some benchmark tools will not allow the test to run with data on the drive. SSDs slow when you start adding data to them. Items like your operating system, Office and other programs are robbing you of performance. Without the data, what would you need an SSD for?
The 840 EVO actually outperforms the 840 PRO in this test at 50% of capacity filled with data. And the EVO 750GB actually does better than any other large capacity SSD we've tested. When you enable RAPID Mode, the 50% full performance increases slightly too.
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