How CPU Cache Works - Technology Explained

[Oj0]

You've undoubtedly heard about CPU cache and know that a larger cache is better, but what exactly is it and why does it affect performance? Additionally, you may be wondering why the cache is so small, normally between 32 KB and 16 MB depending on the level of cache (which we will explain a bit further one) on a high end processor or less when system RAM is measured in gigabytes.

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