What does cache mean in a cpu?

[Pretzel]

cache, sorry for the misspell

Edited November 10, 2015 by Godlygamer23
Corrected title and post.

[Killervolt]

Cash? Cache?

[Pretzel]

Cash? Cache?

it got auto corrected. well this is annoying me now...

[MLG Doge]

Hardware implements cache as a block of memory for temporary storage of data likely to be used again. Central processing units (CPUs) and hard disk drives (HDDs) frequently use a cache, as do web browsers and web servers.

 

Unless you really meant Cash then 

 

[Godlygamer23]

CPU *cache* is a form of very high performance volatile memory used for quickly accessing instructions the respective CPU will probably need. CPU caches have varying levels - L1, L2, and L3.

 

L1 is the fastest and most expensive. It is found in the smallest quantity.

 

L2 is the second fastest and second most expensive. It's the middle of the road.

 

L3 is the third fastest and third most expensive. It is found in the highest quantity.

 

Each of Intel's CPU cores contain their own discrete L1 and L2 cache with L3 being shared with the other cores.

[Lord_Karango17]

A much faster, but smaller version of ram to store what the cpu is working on at the moment (if im not mistaken)

[Sam Z Man]

It's like Ram but is accessed much faster.

[Pretzel]

CPU *cache* is a form of very high performance volatile memory used for quickly accessing instructions the respective CPU will probably need. CPU caches have varying levels - L1, L2, and L3.

 

L1 is the fastest and most expensive. It is found in the smallest quantity.

 

L2 is the second fastest and second most expensive. It's the middle of the road.

 

L3 is the third fastest and third most expensive. It is found in the highest quantity.

 

Each of Intel's CPU cores contain their own discrete L1 and L2 cache with L3 being shared with the other cores.

 

 

Hardware implements cache as a block of memory for temporary storage of data likely to be used again. Central processing units (CPUs) and hard disk drives (HDDs) frequently use a cache, as do web browsers and web servers.

 

Unless you really meant Cash then 

 

Isn't ram used as the cpu's volatile memory?

[Killervolt]

Linus's techquickie video

Edited November 10, 2015 by Godlygamer23
Corrected link to form embed and added spoiler.

[Sauron]

it got auto corrected. well this is annoying me now...

 

you can correct the title

[Godlygamer23]

Isn't ram used as the cpu's volatile memory?

Cache is found directly on the CPU die. It is just another form of volatile memory that the CPU uses to execute and store instructions, but is significantly faster. We use different forms of memory to save on costs - CPU cache is very very expensive compared to RAM and semi-permanent storage.

[Pretzel]

Linus's techquickie video

thanks

Edited November 10, 2015 by Godlygamer23
Made quote in line with edited quote above.