Legit Reviews has the new Western Digital Caviar Black 2 TB (model WD2001FASS) hard drive and will be comparing it to the WD Caviar Green 2 TB (model WD20EADS) hard drive. Here's a bit:

When it comes to performance the WD Caviar Black 2 TB is very fast. While benchmarking the drives we caught ourselves looking at the label and something clicked. The model number on this drive is WD2001FASS, which should stand for Fast AS Shiz! The Caviar Black 2 TB drive was on average 40% faster than the WD Caviar Green in all six of our benchmarks, which was amazing.

The WD Caviar Green 2 TB drive might not shine in the performance benchmarks, but it does shine in other areas like power consumption, heat and noise levels. It uses 4-5 Watts less power while completing seek operations and our testing showed that it was also 6C to 9C cooler depending on the state of the drive. This makes the Caviar Green 2 TB drive the ideal choice for energy-conscious customers or for those that are building a system in a chassis that doesn't have good airflow. Noise levels on the Caviar Green are also much lower even at idle, so it is clearly the victor here as well. The Caviar Green series is the ideal choice if you are looking for lower power consumption, quieter operation and lower temperature numbers.

The 5-year warranty on the WD Caviar Black 2 TB hard drive is also a nice touch as it provides you two additional years of coverage over the WD Caviar Green 2 TB hard drive. Since the Caviar Black 2 TB costs nearly 30% more we feel like it should come with a better warranty and luckily it does. Not all high performance things in life get a longer warranty period though, so computer enthusiasts get lucky most of the time.