Although hard drives don't typically draw huge amounts of power, we still wanted to see how this new breed of SSDs compared to WD's VelociRaptor 10K RPM hard drive, in terms of power consumption. Throughout all of our benchmarking and testing, we monitored how much power our test system was consuming using a power meter. Our goal was to give you all an idea as to how much power each configuration used while idling and under load. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the drives alone.
We'll keep it short and sweet, since you obviously don't need a lot of analysis for this graph. On average, the SSD based systems consumed 5 - 7 Watts less under load, versus our VelociRaptor-based system. At idle the SSD-based systems all consumed 6 Watts less than the spinning drive system.