Before buying a processor, you should always carefully study the offer. This will make it possible to make a comparison of processors in order to buy an excellent product and, preferably, inexpensively. Of course, if it is important for you to choose a processor that has an excellent combination of price / quality. Next, it will be explained on which points you need to pay attention to, and which are not.
First you need to decide what kind of performance you want from your computer. If you want a powerful computer, then you need a model of the latest generation or a little worse, but not by much. The best option is to install a core i7 processor. If a computer is needed only for simple work in the office, then a simple single-core processor will go.
What should I look at first and foremost? By the number of cores, by the clock frequency, by lithography (in other words, by production technology), by the number of cache of the second or third level (if any). And most importantly, this is the type of connector. Since you need to take a processor of the type that can be connected to your computer. Otherwise, your computer will not start, as the processor will not work. However, it won’t reach the launch, because you simply won’t be able to establish your new purchase.
After you decide which processors are suitable for your computer, you should choose the most suitable for you at a price and start comparing processors. Today there are a lot of sites that can compare all kinds of models according to various criteria and parameters. It is worth noting that, for example, the most powerful, or almost the most powerful, of the middle class model line will be stronger and more productive than a weak processor from the newer and latest processor line. The cost of models from the same line can vary greatly. It all depends on the characteristics of a particular model.
Let's compare processors using the most common lines to date: “Dual Core”, “Core” and various “Aeks”
The first of the list is weaker, but also the most common, since their cost is lower. But most market consumers belong to the middle class, who have older models of motherboards that can pull single-core “duals”, or de “Celerons”. These processor lines are weaker, but cheaper. They can play simple games and work without problems and do office work. “Dual core” will be much stronger than the “Celeron” model, but compared to others it will be rather weak.
The line of processors "Cor" i3, i5, i7 is considered more solid, but also expensive. The larger the number, the newer the type of processor. It should be noted that their cost varies quite a lot. Models from the “Core i7” range are available only to well-off people.
If you have an old generation motherboard, then the “LGA775” connector is installed on it. Previously, it was quite common; it is possible to mount processors of various models on it, both cheap and expensive.
With the advent of new processors, new motherboards appeared, on which new sockets (connectors) were installed: LGA versions 1156 and 1155, for “Core i3” and “i5”; LGA 1366 for the Core i7 line. The “i3” and “i5” series have two generations that differ, which is why two different types of connectors are made.
Let's make a comparison of processors by the number of cores in them. In “Dual” there are two poisons. In “i3” - 2, and in line 5 either 2 or 4. I would like to focus on the number of cores in a series of duals, since they have 2 cores, but they are not complete. I will give a vivid example of the situation. For example, take an apple. And cut it in half. In “Dual”, 2 cores work like two apple slices, and in other dual-core CPUs, two full-fledged kernels, that is, two separate apples, participate in the work.
Now about the clock frequency. In "duals", it ranges from 1.6 to 3.33 GHz. In the "3" 1.2-3.33 GHz. In "AI 5" 1.2-3.6 GHz. As you can see, there is not much difference.
As described above, special attention should be paid to the cache volume of the maximum available level in the processor. In “Dual-Core” L2, the cache is only 1 MB (there are excellent models where the cache is 2 MB, but mostly 1 MB everywhere). Already in i3 and i5 the third level of cache is introduced. In the third "aik" he is from 3 to 4 MB. Here “i5”, as a more serious model, has an L3 cache equal to 4 or 8 MB.