The Hard Drive Factor
 

While often overlooked, the hard drive plays an important role in the system’s overall capacity and performance which can be vital in ensuring a smooth-running, glitch-free experience. If data bogs down at the hard drive, you won’t have a chance in Zanzibar to experience the full power of your system, no matter how much processing power you’re packing.

http://www.techspot.com/article/49-t...-drive-factor/