Benchmarking a 32GB USB 3 Lexar memory stick on OS X 10.8

Zë Au Sol

17 Sep 2012

Spoiler alert: the unencrypted volume is??1.8314606741573 times faster.

Intel Core i7 @ 2GHz, 8GB RAM.

Unencrypted volume

localhost:~ me$ dd if=/dev/random of=/Volumes/VHD1/fatty count=2m2097152+0 records in
2097152+0 records out
1073741824 bytes transferred in 89.328126 secs (12020199 bytes/sec)

Encrypted volume

localhost:~ me$ dd if=/dev/random of=/Volumes/VHD1/fatty count=2m2097152+0 records in
2097152+0 records out
1073741824 bytes transferred in 163.039418 secs (6585781 bytes/sec)

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