Western Digital introduced its first SATA 6Gbps hard disk, the 1TB Caviar Black (WD1002FAEX). This 7200RPM model features 64MB cache, twice as much as its SATA 3Gbps predecessor. Hexus reports the new HDD is about 20 percent more expensive than a 1TB HDD with the SATA 3Gbps interface.
With a 7,200rpm hard drive unlikely to suffer the bandwidth restrictions of a SATA 3Gbps interface, the upgraded model is likely to offer little in terms of real-world performance benefits - despite the larger cache.
Owning the latest tech will cost you a little extra, though. Western Digital's 1TB SATA 6Gbps Caviar Black drive is currently available priced at around £87, making it roughly £15 more than a equivalent-capacity Caviar Black drive with a SATA 3Gbps interface and a smaller cache.