The purpose of this document is to explain the relationship between cache memory and main memory and what this means when considering an upgrade of your system's main memory. This is not intended to be an exhaustive explanation of all main memory upgrade considerations.
Main memory is the primary bin for holding the instructions and data the processor is using.
The cache memory is similar to the main memory but is a smaller bin that performs faster. The cache memory performs faster by accessing information in fewer clock cycles. There are two types of cache memory present in the majority of systems shipped. Consider the following analogy concerning carpenters. The carpenter performs a number of tasks, using many different tools.