updated 11:45 am EDT, Mon June 15, 2009
MacBook SATA slowdown
Apple has scaled back the SATA interface speeds in some of its new MacBook Pros, testing reveals. Whereas Pros have typically been equipped with 3Gbps SATA, the new 13- and 15-inch systems have been limited to 1.5Gbps. The 17-inch Pro remains unaffected, along with the MacBook Air and the 13-inch plastic MacBook.
Most Pro owners should not see a noticeable difference, as the default hard disks available are unable to approach 1.5Gbps. The new interfaces may however affect people swapping in SSD drives, which in their faster varieties can surpass the 1.5Gbps threshold. It is not clear to what extent practical use may be hampered, as drives have so far been tested only in terms of raw performance. It is also uncertain if throughput could be boosted through a firmware update.