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Devices Flash

Sandisk Cruzer USB 2.0 vs SanDisk Extreme USB 3.0

To get understanding of why cheap USB Flash are cheap and some expensive are expensive. Let’s compare two 32GB flash drives from SanDisk. Cheap one is SanDisk Cruzer 32GB SDCZ36-032G. Expensive one is SanDisk Extreme USB 3.0 SDCZ80-032G.

Sequential Read (MB/s) 16,452 91,141
Sequential Write (MB/s) 3,828 76,589
Random Read 512KB (MB/s) 16,371 83,097
Random Write 512KB (MB/s) 0,548 6,252
Random Read 4KB (QD=1) (MB/s) 2,788 10,368
Random Write 4KB (QD=1) (MB/s) 1,795 9,994
Random Read 4KB (QD=32) (MB/s) 2,693 9,12
Random Write 4KB (QD=32) (MB/s) 0,22 2,936
Price (approx.) 20$ 40$

 

Speed test done with CrystalDiskMark 3.0.1

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