Posted 03 March 2006 - 02:11 AM
Ultra-ATA/100 has a transfer rate of 100MB/s while SATA150 has a transfer rate of 150MB/s. Now in harddrives this is irrelevant since the fastest harddrives you'll find can do no more than 70MB/s.
Yes there are big differences between models, in how reliable they are and how fast they perform in different tasks. Best way to find what you're looking for is to head over to something like AnandTech
and look at they're storage reviews.
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