The simplest answer comes first i7 after i5 and the last one is 3. The numbers i3,5,7 do not say at all about the number of cores in them. Now let's determine what this number depends on.
This number depends on the level of processing power, which in turn is determined from their stars in the Intel processor rating, which is made up of criteria: number of cores, clock speed (in GHz), cache size, and whether the processor has technologies such as Intel Turbo Boost(ITB) and Hyper-Threading(HT).
i3 received three stars, i5 four stars and i7 five stars. Intel processors Celeron and Pentium earned 1 and 2 stars respectively.
We also note that Core processors can be compiled from the point of view of the device on which it is installed, that is, for laptops and for PCs. Each of them has its own specific features in the characteristics. I note that we are talking about 2nd generation processors.
Number of Cores
As everyone knows, the more cores, the better. More cores, more tasks (threads) running at the same time. i3 has the fewest cores. All Core i3 processors have two cores.
Also now all i5 processors except i5-661 have four cores. Core i5-661 dual core processor with a frequency of 3.33 GHz. Tip: i3-560 clock frequency also 3.33 GHz, that is, the same as the i5-661, but it is much cheaper than it.
But i5-661 has over Core i3-560, it has Turbo Boost technology.
Intel Core i7 processors have 4 or 6 cores.
Intel Turbo Boost
ITB technology that allows you to increase the frequency during operation, if necessary. The maximum frequency value depends on such characteristics as the number of cores, power consumption and temperature.
For Core i5-661, the maximum frequency is 3.6 GHz. Because no Core i3 processors have this technology, any of the i5 family can overtake them if necessary.
Cache size
Every time the processor notices that we are using the same information, it stores it in cache memory for later quick access to them. This is due to the fact that the cache memory is located in the processor itself. RAM and cache are used in waiting areas for frequently used data. Without them, the processor would have to interact with the hard disk, which takes longer.
Principle of operation random access memory reduce the amount of information transferred from hard drive, while the cache reduce the amount of information transferred from RAM. It follows from this that the larger the cache memory, the more information can be obtained quickly. The processors of the Core i3 family have 3 MB of cache, the i5 except for 661 (4) has 6 MB. And all i7 processors have 8 MB. This is one of the principles why i7 is better than i5 - and why i5 is better than i3.
Hyper Threading
Due to the fact that one processor can only process one thread, Intel invented HT technology. This technology allows one core to handle multiple threads.
For example, Core i3 has 2 cores, but because of this technology, the processor can process up to 4 threads. Unfortunately, the 5-series does not have this technology, the exception is the i5-661, it follows that the thread number is the same as that of the Core i3.
Here's another reason why i7 processors are better than the rest. Due to the fact that they have 4 cores while supporting HT technology. It follows from this that at the same time 8 threads can be processed by processors of the i7 family. Combined with 8MB of cache and ITB you will see why they are the best.
Now more and more programs use multiple threads at the same time to increase speed. Some photo and video editors are multi-threaded. However, browsers are unlikely to use this in the near future.
Core i3 processor
Needed by those who use their computer for simple tasks (word processing, Email etc.). The i3 processor can easily handle these simple tasks. Inexpensive.
i5 processor
If you are into video editing or you love games core processor The i5 can handle these tasks with ease, at a reasonable price.
i7 family processor
This beast is not for everyone. But if you have enough speed, then the Core i7 is just for you.
In the end, I would like to say. That any processor from the family, whether it be Core i3, i5 or i7, are guarantors of quality. All three Core I families are appreciated by everyone. My advice to you is to buy a computer that does what you want and fits your budget.
Intel divides its microprocessors into two main groups. On the one hand, its Celeron and Pentium family for users who do not require high performance, and on the other hand i3, i5 and i7, for advanced users.
I5 is a processor that can be called an SUV. If , is sufficient for 80% of users, the i5 processor is suitable for almost anyone.
The differences between an i5 processor and an i7 processor are small and not worth the extra expense in most cases. It might make more sense, depending on how you intend to use your computer, to invest in SSDs, RAM, or a good graphics card.
Of course, the i7 processor is no worse than the i5, just the applications for which it is needed are rather narrowly specific.
Nuclei . In desktop PCs - 4 cores, except for i5-6xx models and 2 cores in laptops. All 2 core i5 processors support HyperThread technology.
turbo boost . The fundamental difference from i3. Turbocharging, if necessary, allows the processor to work for more high speeds. The benefits of this additional technology are especially noticeable in applications that use a single thread. And such applications, by the way, the majority.
Integrated graphics . Some of the i5 processor models have an integrated graphics card. A computer with such a processor is of course cheaper, but then you should keep in mind that the processor is discrete, that is, less powerful, and will be used to start the computer.
Memory controller . As with the graphics card, the memory controller is integrated into the processor. Such a processor determines the type of RAM that can be installed. That is, with an i5 processor, only DDR3 can be used.
PCI Express . The PCI Express controller is also integrated into the i5 processor. Thus, if you are using a discrete graphics card, the connection to the processor will be direct.
Versions of the i5 processor.
The first generation of i5 processors. It has several types of processors. I5-7xx, 7xxS - on Lynnfield core. i5-6xx - on the Clarkdale core. i5-5xxM, 4xxM, 5xxUM, 4xxUM - on the Arrandale core for portable devices. The first models of processors have 4 cores, the other 2 cores with Hyperthread technology.
The production technology allows the creation of transistors 45 nanometers in Lynnfield, against 32 nanometers in Arrandale and Clarkdale.
As a set of instructions, they support SSE 4.1/4.2 and MMX. The i5 6xx series processor and Arrandale already have a graphics card integrated.
Second generation i5 processors. Also known by its own name Sandy Bridge. Support for AVX instructions has been added to the processor, which allows you to speed up scientific, financial calculations, signal processing, etc.
In desktop versions of the computer, all i5 processors have 4 cores, except for the 2390T, which has 2 cores and Hyperthread technology. The laptop has everything as in the last version.
Another hallmark these i5 processors is the inclusion of Quicksync, which increases the speed of video processing and encoding.
Third generation i5 processors. Also known as Ivy Bridge. In these processors, Intel has improved the manufacturing technology itself. The corporation managed to create transistors of 22 nanometers. Thus, in the same area, they managed to place twice as many. What added energy efficiency and increased the speed of data processing.
Like Sandy Bridge, desktop PCs have i5 processors with four cores. Except i5 3470T series processor which has 2 cores and Hyperthread technology. Everything in the laptop is like in the i5 processor of the 3470T series.
For whom i5 processor.
As mentioned above, the i5 processor will suit almost any user. If your budget is still limited, this is the processor for you the best choice. Add to this that the actual applications for which it is better to take advantage of the i7 processor are quite specific and you have an almost perfect processor.
Hello guys Intel Core i3, i5, i7 processors, this is perhaps the best middle among processors in the world. Yes, guys, it is in the world, if you need an optimal balance in terms of price and performance, then it is better to take processors from Intel. I don’t argue, AMD is also good, but in short, they have a lot of cores and a higher frequency, but they are still weaker .. And, you know what? Don't forget that AMD processors consume more light. For some this is a trifle, but for some it will be important..
So, a bit off topic, so sorry. The question we have today is how many cores are in Process Core i5? And here the answer cannot be taken and just given! Why? Processors can be laptop, desktop, and so to speak, the first i5 models. For all these three types, the number of cores may differ, and there may even be threads (Hyper-threading technology). Although there are such users, they are sure that there are no threads in i5 and that's it, that's it! In a sense, they are right, because there are no threads in the desktop versions (we'll talk about the exception later).
So guys, in general, if you have an i5 percent, then you don’t have to guess and fool your head, you can just take it and download CPU-Z utility She will show you everything. Then you launch the CPU-Z program, and there is something like Cores and Threads at the bottom, this is the cores and threads, this is where it is written:
But if you are just interested in infa about how many cores are in the Intel Core i5, then okay guys, I'll tell you.
So, as I already wrote, desktop versions of Core i5 have 4 cores. This is the golden mean among Intel processors, 4 cores and that's it, without threads. i7 already comes with threads, but there are also 4 cores. Well, i3 does not have 4 cores, it has 2 cores, but it also has threads.
It has already happened that in the i5 process there are exactly 4 cores and a point. But, this all applies to desktop versions. But there is one exception on socket 1156, well, maybe there is not one, but several exceptions, well, the first i5 processors on socket 1156 had 2 cores and 4 threads. That is, they were i5 with 2 cores, many users will say that I am writing full bullshit, but it's true. Here is an example, i5 650 model in CPU-Z program:
See what's written down there? Cores: 2 and Threads: 4, i.e. two cores and four threads. But don't worry if you ordinary user, then I think that it is unlikely that you will have such a percentage, after all, socket 1156 is already in the past, this is an outdated socket and a little rare. These are the exceptions, all other i5 models are on the 1155th socket, on the 1150th, on the 1151th, then there are already 4 cores everywhere.
Now oh mobile processors. If you have a laptop, or you are thinking of taking it, then you should know that inside the laptop is not the same percentage as in a regular computer. It stands there for a laptop, and it is made in such a way that the laptop works for a long time, so that the percentage does not eat a lot of light, does not get warm, and all that. It is clear that this all affects performance, such a percentage is less productive than the desktop version. Sometimes, you can even say that it is truncated, because there are not 4 cores but 2, but there are threads. For example core model i5-4200U:
As you can see, this is exactly what I was talking about, there are 2 cores and 4 threads, although it is i5! Here is another i5-6200U model, newer, but still 2 cores 4 threads:
So laptop processors are like that, well, a little different from everyone else ..
If the laptop is expensive, then there may be an i5, which has all the full 4 cores, but alas, they still remain mobile. For example, the i5-6300HQ model:
By the way, the situation is about the same with the Core i7, there are also differences in terms of the number of cores!
Well guys, is everything I wrote to you here more or less normal? I hope that everything was clear here, and if something is wrong, then I'm sorry. You see, I bring screenshots of the CPU-Z program everywhere, this is because it is a suitable program and I advise you to it, this is a great program to quickly find out information about the process. It is free, the computer does not load at all, it works clearly, in short, I wrote that this is a good program
All the guys, that’s all, good luck to you in life, so that everything is fine with you, so that you don’t get sick and be happy, good luck
09.12.2016
