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SanDisk Extreme 240GB Fixed TRIM Solid State Drive Review

By: Chris Ramseyer | SSDs in Storage | Posted: Aug 24, 2012 6:20 am
TweakTown Rating: 93%Manufacturer: SanDisk

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.




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


The new FW decreased the performance at 50% of the user capacity filled. Later this week we have some face to face time with LSI SandForce and we will stress the importance of performance when the drive has data on it. This is an area where SandForce has dominated the SSD market, but the new FW makes the SanDisk Extreme just average.


I think part of that comes from the eight NAND flash chip configuration, the drives we're testing with 16 NAND flash do not fall back so far at 50% full. You have a choice, go for lower power consumption with less NAND chips or go for more performance with more NAND chips.

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