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.
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.
HDD1 - Windows Defender
HDD2 - Gaming
HDD3 - Windows Photo Gallery
HDD4 - Vista Startup
HDD5 - Windows Movie Maker
HDD6 - Windows Media Center
HDD7 - Windows Media Player
HDD8 - Application Loading
Right here, this is the spot that gets me all worked up about these asynchronous flash drives. When data is added to SSDs, they get slower. That is just the way it is with nearly all SSDs, but some drives are affected more than others. The asynchronous flash drives take a very big hit, massive actually, when compared to the synchronous flash drives.
If you conclude that most users keep their SSDs filled at about 50%, then these new low cost asynchronous drives are not the best bang for the buck. Looking at the chart, at a 50% fill rate the Corsair Performance 3 and Crucial m4 are both faster when filled at a 50% rate. You are not going to get bleeding edge benchmark runs from these drives, but when your drive is filling up these products give you better real world performance
and they cost about the same.
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