CPU cache

Dynamically managed local memory that mirrors main memory in a microprocessor to reduce the cost of access

EntityQ352090

Also known as central processing unit cache · processor cache

Subclass of: cache
, computer storage media
, volatile memory
Part of: central processing unit
, memory hierarchy

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations, avoiding the need to always refer to main memory which may be tens to hundreds of times slower to access.

Overview

All data

16 statements · 19% with external sources · numbers in brackets are citations

Follows: processor register criterion used: memory hierarchy
Followed by: primary memory criterion used: memory hierarchy
Uses: eSRAM nature of statement: often
eDRAM nature of statement: rarely

On other databases

4 identifiers linking CPU cache across the web's reference databases

Data quality

statements

19%

externally sourced

Source last edited May 5, 2026. AIDB refreshes this page daily.

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AIDB. (2026). CPU cache (Q352090). Retrieved from https://aidb.si/e/cpu-cache-Q352090