SATA II - Theoretical vs. Real World Speeds

Discussion in 'MacBook Pro' started by wikus, Jul 5, 2011.

  1. wikus macrumors 68000


    Jun 1, 2011
    Planet earth.
    I'm debating over which SSD Drive to get; Intel 320 or the Intel 510.

    However, one is for SATA III 6Gbit speeds (510) and the other for SATA II 3Gbit speeds (320).

    I'm on a Macbook Pro with SATA II and my question is;

    Will an Intel 320 saturate real world speeds of SATA II in my MBP even though 3Gbit is technically 375mb/s? The 320 is rated at 275mb/s, but if real world SATA II speeds are higher, would I benefit from the Intel 510's 400mb/s speed eventhough its slightly above the 375mb/s theoretical SATA II transfers?

  2. Philflow macrumors 65816

    May 7, 2008
    Real world SATA II speeds are ± 275 MB/sec max.

    even so, the Intel 510 will be slightly faster on SATA II. See Anandtech's benchmarks.
  3. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    I really don't think you would notice any speed difference with the 510 with your setup. Save the money and go with the 320.

Share This Page