Read/Write speed of Seagate Momentus XT 500GB hybrid hard drive

The Seagate Momentus XT 500GB hybrid hard drive (4GB SSD, 500GB HDD) is a useful way to speedup system boot and execution. However, on brand new files the speed is the same as a typical hard drive. I plugged the new drive into my Kingwin Dockmaster USB 3.0 adapter to see what the drive could do over a USB 3.0 link, using Disk Utility on Ubuntu 12.04.

Seagate Momentus XT Hybrid HDD benchmark
Seagate Momentus XT Hybrid HDD benchmark.
  • average read speed: 90MB/sec.
  • average write speed: 97MB/sec.

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