SATA vs SSD Energy Consumption

Solid State Drives (SSD) are not an entirely new technology. They have gained notoriety in recent history because of their varied advantages as storage devices over traditional Hard Disk Drives (HDD). HDDs are the most frequently used storage devices because they are, on average, 10 times cheaper than SSDs.

 

Nevertheless, the advantages of HDDs over SSDs end there. The most common hard disk drive in the market today is the SATA hard drive. Compared to SSDs, the SATA drive is slower and more fragile. The movable arm on the SATA hard drives makes them noisier than the SSDs which have no movable parts.

 

In addition to reliability, speed and low mortality, SSDs also consume less power than SATA disk drives (an estimated 3watts compared to 12watts for SATA). This is partly because no more power is needed to move mechanical arms like those found in SATA drives. The lower heat dissipated by Flash-based SSDs also save on power requirements. This is because no additional power is required for fans or air conditioning.

 

The obvious advantage with SSDs used in laptops is a longer battery life. In desktops and workstations, SSD’s power saving could lead to significantly lower electricity bills.

Have you replaced your traditional hard drive with an SSD?  How did you find that it effected your energy usage?

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