![cache-4601796](<a href="https://rmarketingdigital.com/en/wiki/https/" target="_blank" data-wpel-link="internal">https</a>://rmarketingdigital.com/wp-content/uploads/2021/04/Cache-4601796.jpg)
<>
La gran mayoría de usuarios conoce y sabe qué es la cache. Even though what many probably do not know is what is the L1, L2 and L3 cache. You may have heard of this on occasion, but you really don't know what these levels mean. That is why, below we show you everything there is to know about it.
Therefore, you can be more clear about what these different levels are. So if you ever read or listen to something about L1, L2, and L3 cache, you will know what it is, what it is for. We also explain how enter this information on your computer.
RAM is essential in the computer. It is in the same where the programs and the operating system are loaded, to be used by the processor, without having to access the hard disk each time. This is so because the RAM is much faster than the hard disk, even though the cache is even faster than the RAM of our PC. We focus on that today.
What is the cache
The cache is a small memory, which is installed in the microprocessor. It has the ability to contain data without needing to be constantly updated. By being installed on the CPU, it is very fast. You can actually achieve speeds of over 200GB / s in some cases, which makes this speed clear. It is responsible for storing the instructions that will be processed by the CPU.
It does this so that the CPU has access to these instructions as quickly as possible. This cache is divided into several levels, each one faster. This is when the concept of L1, L2, and L3 cache makes its entrance.. Each level is smaller and closer to the processor. We have a total of three levels inside, which are the ones we explain below. Since we leave you with all the data about L1, L2 and L3 cache.
Post relacionado:
How to enable and disable disk write cache in Windows 10
L1, L2 and L3 cache
We can already deduce therefore that cache L1, L2 and L3 are the levels that we have within this cache. Each of these levels has specific specifications, which make them clearly different. Therefore, we teach you more about these L1, L2, and L3 caches individually. For it is important that you know everything about them.
L1 cache
First we have the L1 cache, within these L1, L2 and L3 caches. It is the fastest, because it is the closest to the nuclei. Therefore, it is capable of reaching speeds up to 1150GB / s at select times. Its size is small, only 256 KB, even though it depends in part on the power of the CPU. Since in other models the size can be larger, up to four times larger.
The L1 cache is divided into two types: one for data and one for instructions. The first stores the data that is processed and the second the information about the operation to be carried out. At the same time, note that each of the cores has its own L1 cache. Therefore, in a 6-core processor, we find a total of six L1 caches.
L2 cache
Second, we find the L2 cache. It is one that has a greater storage capacity, even when it is slower than the previous one. Since in this circumstance we find a speed that meets 470 GB / s at its peak of operation. At the same time, the size in this circumstance is variable, remarkably. It can be small like the previous one, barely 256 KB or even exceed 15 MB with ease.
In this cache is stores instructions and data that the CPU will use shortly. It is not divided in two as in the previous case. Although, in this circumstance, the presence of an L2 cache is repeated for each core, at least in the most powerful processors this is the case.
L3 cache
Third, we find the L3 cache. For this case, you have a dedicated space for this on the processor chip. This is the greatest memory in these L1, L2 and L3 caches, while also being the slowest. In your case, the speed meets 200 GB / s in your case maximum. The size can vary from 4 to 64 MB in weight.
Again, it is distributed among the processor cores. Normally, they are a couple of MB per core, but this division will depend on each processor.
How to know the L1, L2 and L3 cache
Para aquellas persons que quieran saber qué caché L1, L2 y L3 disponen en su computadora, existe una manera simple, What is CPU-Z usage?. It is a tool that you already know, which is very useful. Thanks to it, it is feasible to know in a simple way how these levels are distributed on your PC.
