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What is Cache Memory?

A temporary storage area for frequently accessed or recently accessed data. Having certain data stored in a cache speeds up the operation of the computer. Cache size is measured in megabytes (MB) or kilobytes (KB).

Imagine arriving at the grocery store and having all your favorite food fly off the shelves and fill the cart in minutes.

A cache, in computer terms, is a place to store information that's faster than the place where the information is usually stored. Cache memory is fast memory that is used to hold the most recently accessed data in slower main memory. The idea is that frequently accessed data will stay in cache, which allows the CPU to access it more quickly, which means it doesn't have to wait for the data to arrive.

In reference to your processor, the Cache Memory is the Processor's internal quick-hand storage that it uses for things that it's currently processing at that given time. As with most things, the more cache memory a processor has, it will usually run smoother and faster than one with less of about the same operating frequency.

Some memory caches are built into the architecture of microprocessors. The Intel 80486 microprocessor, for example, contains an 8K memory cache, and the Pentium has a 16K cache. Such internal caches are often called Level 1 (L1) caches. Most modern PCs also come with external cache memory, called Level 2 (L2) caches. These caches sit between the CPU and the DRAM. Like L1 caches, L2 caches are composed of SRAM but they are much larger.

That’s L2 cache. It remembers the information accessed most frequently in your computer so you can easily get to it without those annoying lags. (Just don’t expect it to remember documents you didn’t save. It’s just a computer, not your mother.)

Tip! More L2 cache reduces bottlenecks and helps speed memory performance.

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BANGLADESH