Question

In 2020, an access time of 5 nsec would be typical for which element of the memory hierarchy in a desktop processor system? You must elaborate your response using the memory hierarchy terminology established within the lecture module content. For full credit, your response must consist of at least 5 complete sentences, but not have more than 10 sentences. HTML Editor

Answer 1

In 2020, Intel i7 processor and DDR RAMs can be taken as the standard of performance of a desktop system.

The access time are to be defined for the following memory in hierarchy:

1.) It takes 0.5ns to 5ns to access data in L1 cache

2.) it takes 3ns to 9ns to access data in L2 cache

3.) it takes about 19ns to access data in L3 cache

4.) it takes 100ns to access data in DDR memory

5.) It takes 10ms to access data in disk storage

Typicall 5ns is the access time for L2 cache