All About Storage

Seagate has unveiled the first hard disk that uses the new, faster SATA interface. The company has teamed up with AMD to demonstrate a prototype of its new Barracuda hard disk, which uses a 600MB/s interface.

Seagate claims that the hard disk will offer twice the transfer speeds of those that are available today, which offer maximum speeds of 300MB/s.

For most users, it is unlikely that hard disk using the new 600MB/s SATA interface will hit speeds that are noticeably faster than the 300MB/s hard disks available today. This is because the speed of most current SATA hard disks is still hindered by their spindle speeds (how fast the physical discs spin), which mechanically dictates how long it takes to read data. 

Thankfully, the new SATA 600MB/s interface is backward compatible with the older cables and hard disks running at 300MB/s, and even original SATA hard disks that have 150MB/s interface speeds.

Man! i really cant wait for faster data transfer! it took up years just to back up 1 disk

via - Expertreviews