Samsung Electronics has launched its new EcoGreen F2EG line of hard disk drives with capacities of up to 1.5 terabytes. While not as capacious as Western Digital and Seagate's 2TB offerings, the new drive also sports a 500GB per platter design and reportedly consumes around 40 percent less power than most comparably priced HDDs thanks to its EcoTriangle technology.

To put that into perspective, the 1.5TB F2EG uses 6.3 watts during read/writes and 5.1 watts when idle whereas Western Digital's 1TB RE2-GP energy efficient hard drive has an average operational power consumption of 7.4 watts and Seagate's 7200.11 1.5TB drive idles at 8.0 watts. Also available in 500GB and 1TB capacities, the new F2EG uses a 3Gbps SATA interface and comes with either 16MB or 32MB of buffer memory. Check out more detailed specs here.