Any real difference between SATA 1.5G/s and SATA 3.0Gb/s

Just out of curiosity, is there any real world difference in performance between the SATA 1.5Gb/s and SATA 3.0Gb/s? If so how much?

Thanks.
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  1. None in the real world. Those specs are possibilities.

    !.5 gigabits per second is about 185 megabytes per second (8 bits to a byte).

    Your faster drives today are in and around the 100 mb mark (0.7?)
  2. Thanks. That's what I figured.
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