Since everything is measured in some way or the other thus RAM speed is measured in megahertz (MHz) terms
. Opening of various programs at one time also affects the speed of RAM by slowing it down. In such a case the computer uses the hard disk for temporarily storing the additional data. Therefore, a computer with large RAM is bound to offer better performance by doing more tasks at a faster pace. A minimum of 1GB RAM is highly recommended in the modern day computers. For a gaming person the advisable limit is atleast 2 GB RAM.