I recently installed a Seagate 7200rpm 750GB Momentus XT in my m11x r2 after a friend telling me about the hybrid technology.  It has an 8gb SSD integrated into the 750Gb disk drive, giving you a balance of SSD like read / write performance with out sacrificing the storage space.

It is hard to quantify how fast this drive actually is, but both Ubuntu and windows boot and feel faster in day to day usage.  The drive’s firmware claims to cache commonly used files and automatically adapt to your usage, and it does seem to learn in this manner.

Copying files about and running the standard Disk Utility drive benchmark gives read speeds averaging at about 100 MB/second. I didn’t do the write test as this requires the drive to be unmounted and I was not totally convinced that it would be non destructive… but here is the read test results:

seagate momentus xt read benchmark

Ive go the ST750LX003-1AC154 (SM12) model and I am very impressed and thank Binky for the recommendation 😉