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SanDisk A110 256GB PCIe M.2 NGFF SSD Review (Page 10)

By Chris Ramseyer from Aug 28, 2013 @ 8:11 CDT
TweakTown Rating: 96%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.

sandisk_a110_256gb_pcie_m_2_ngff_ssd_review_64

The A110 recovers well with TRIM after blocks of data are deleted and removed. With the drive half-full we still scored over 40K Marks.

This leads me back to the optimized driver issue. The Microsoft driver significantly affects performance on the 2.5" drives we normally test and the difference between the Microsoft driver and Intel driver is massive.

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