1TB Evolves: New Drives, More Speed

I/O Performance

As already mentioned, the WD Caviar Black provides impressive I/O performance, which actually beats all of its 7,200 RPM competitors by a significant margin. If you’re looking for a server drive to deal with more than just occasional user access, the Caviar Black or its RD3 (RAID Edition) counterpart are the best 7,200 RPM drives we’ve had yet in our test lab.