Sign in with
Sign up | Sign in
Your question

What is the l2 cache & l 3 cache

Last response: in CPUs
Share
November 15, 2011 12:16:05 PM

Hello
hi
intel core i 7 l2 cache 256 kb & l3 cache 8 mb

More about : cache cache

November 15, 2011 12:17:10 PM

it's the memory located directly on the cpu.
m
0
l
a c 102 à CPUs
November 15, 2011 12:17:42 PM

Basically its small amounts of memory built into the CPU L2 is faster than L3.
m
0
l
Related resources
a c 471 à CPUs
a c 115 å Intel
November 15, 2011 12:40:07 PM

Generally it is there to help improve overall processing performance. L2 is faster than L3. If the CPU needs to store even more data it will then go to the RAM installed on the motherboard which is slower than L3 cache.

More amount of cache is not necessarily better since the CPU must search through the cache to find the data it is looking for. If it is not there then basically the cache gets flushed, other data is loaded, then the CPU searches again. Not exaclty precise, but easy enough to understand.
m
0
l
a b à CPUs
November 15, 2011 2:11:20 PM

The various levels of CPU cache are fast access memory built on to teh CPU die. Different CPU's have different levels/amounts of built in cache. As a general rule, the higher level the cache is, the more of it exists, but the slower access time is as well.

In todays CPU's, you typically have 3 levels of built in CPU cache. In this case, Main Memory would sometimes be considered the L4 cache. [I still have a lot of books that refer to the L3 cache as main memory...]
m
0
l
!