It copied this data from one folder on the hard drive to another at a rate of 29.8MBps. The hard drive wrote 20GB of 3-4GB files at 73.8 megabytes per second (MBps) and read the same data at 79.5MBps. In these tests, the Barracuda LP 2TB performed significantly better than the Caviar Green 2TB. We tested the hard drive by transferring data between it and a 300GB Western Digital VelociRaptor. Overall, the Barracuda LP consumes less power than most 3.5in internal hard drives, but the energy savings aren't as significant as the Caviar Green's. As the Barracuda LP 2TB has a constant spin speed, power consumption was more consistent than the Caviar Green, which spins the drive's platters at variable speeds. Performing a simultaneous read/write operation caused the drive to consume 6.3W. When writing data it consumed 5.8W of power and when reading data its power consumption jumped to 6.4W. Nevertheless, the effect is noticeable.ĭuring our tests the Barracuda LP 2TB consumed 5.2 watts when idle, which is 1.5W higher than Western Digital claims its Caviar Green internal hard drive consumes. Western Digital heavily markets the 'GreenPower' features like a variable spin speed that aid the Caviar Green's power efficiency, but beyond the 5900rpm spin speed Seagate doesn't specify the power-saving measures employed in the Barracuda LP. Much like Western Digital's equivalent drive, the Caviar Green 2TB, the Barracuda LP focuses on power efficiency. The 'LP' in Barracuda LP (ST32000542AS) stands for low power. The drive spins at 5900rpm, an unconventional figure that sits between the 5400rpm of slower internal hard drives and the 7200rpm often found in standard 3.5in desktop drives. The Barracuda LP 2TB internal hard drive features four platters of 500GB each and has 32MB of cache. The Seagate Barracuda LP also manages to cut down on energy consumption compared to conventional 7200rpm hard drives while retaining reasonable performance. The Barracuda LP (ST32000542AS) is the first internal hard drive from Seagate to store two terabytes of data 2TB is currently the maximum capacity of a single 3.5in SATA 2 drive.

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