Now we have the results provided by HD Tune.

Here Seagate Barracuda LP 2 TB was 23% faster than Western Digital Caviar Green 2 TB. Keep in mind that the burst transfer rate measures the maximum transfer rate between the motherboard SATA port and the hard disk drive controller located on the drive itself, and may not represent real-world performance.

The most important figure for most people is the average transfer rate. Here Seagate Barracuda LP 2 TB was 21% faster than Western Digital Caviar Green 2 TB.

The maximum transfer rate is achieved when the hard drive is reading data from its outer-most tracks.

Here Seagate Barracuda LP 2 TB was 25% faster than Western Digital Caviar Green 2 TB.

The minimum transfer rate is achieved when the hard drive is reading data from its inner-most tracks.

Here Seagate Barracuda LP 2 TB was 17% faster than Western Digital Caviar Green 2 TB.