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SanDisk Extreme II 240GB SSD Review - Benchmarks - Test System Setup and ATTO Baseline Performance

By: Chris Ramseyer | SSDs in Storage | Posted: Jun 3, 2013 4:30 pm
TweakTown Rating: 94%Manufacturer: SanDisk

Desktop Test System





Lenovo W530 - Mobile Workstation



We use two systems for SSD testing. The desktop runs a majority of the tests and the Lenovo W530 runs the notebook power tests as well as the real-world file transfer benchmark.



ATTO Baseline Performance


Version and / or Patch Used: 2.34


ATTO is used by many disk manufacturers to determine the read and write speeds that will be presented to customers.




In ATTO we see a different performance profile than what we normally see with SSDs. The highest performance is no longer in the largest block size. This is true for both reads and writes. We suspect SanDisk's nCache play a role is shaping the curve. As we mentioned on the specifications page, SanDisk moved to CDM for their marketing number, this new curve could have played a role in that decision.


We found the best read performance at the 128K block size, nearly 560MB/s. The write performance reached its highest mark in three block sizes, 512, 1024 and 2048, all at nearly 523MB/s.

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