There’s some buzz this morning about the 2009 Macbook Pro exhibiting SATA 1.5Gbps speeds (the previous models have a 3Gbps SATA hard drive controller) and from the first benchmarks, it looks like disk performance is logically lower, if you have a fast disk, like an SSD – even 7200rpm laptop hard drive often don’t reach 120MBps (Mac rumors reports [SSD] performance going from 225MB/s down to 115MB/s in disk benchmarks. Ouch.).
The situation gets even more confusing as some users are reporting seeing a 3Gbps SATA, while others see a 1.5 Gbps one. First of all, I believe that NVIDIA has never produced a single GeForce 9400M motherboard chipset (aka ION) that doesn’t handle SATA-2 (3Gbps). And even if they did, it would not really save abuck on the chip, as long as the chip size is identical. Most importantly, a1.5 Gbps SATA-I Geforce 9400M chipset does not exist, as far as I know.
Then what happened? We’re not sure, but consider these scenarios: what if some computer shipped with a SATA-I disk? What if 1.5Gbps consumes less power? What if it was a shortcut to ship on time? Because the hardware supports SATA-II, there is a
slight good chance that this can be updated in the future. We’ll be waiting for an official statement from Apple.
Filed in 3g, Apple Inc, Laptops, Macbook, Macbook Pro and Sata.. Read more about