Complete Guide To Buy Cpu Processor

Guide to buy cpu processor: How do you choose a CPU? What technical characteristics must be taken into consideration for judging the performance

there are something to consider if you want to  buy a cpu processor

Number of Core

The number of Core is the very first thing to look at, when people read the technical characteristics of a processor.
It 'a great indicator of what will be the performance of your computer.

In theory, most of which are the core in the processor is in possession, the performance will be more interesting and multi-threading will not be a problem.

Note: Multithreading improves performance only when these programs were developed by dividing the workload on multiple threads that can run in parallel. Multiprocessor systems are equipped with multiple independent computing units, a multi-threaded but has a single unit of computing that seeks to best use multiple threads running in the same unit of calculation. The techniques are complementary, sometimes multiprocessor systems also implement multithreading to improve overall system performance.

Currently (at which time writing) you can find on the market for processors that implement two or three (only AMD), four and six Core.

We feel strongly advise processors that implement 3 or 4 cores.
They represent, in fact, very balanced solutions that offer excellent support multithreading + frequency of work (often) higher than the 6-core processors.

Core 2 processors are good only as a fallback in case of hardship or compatibility of hardware to comply.

We recommend that you opt for a 6 Core processor if and only if you use programs that can benefit from this type of architecture.

buy cpu processor Cache Memory

The term cache refers to that portion of the temporary memory used because they guard that information that need to be retrieved quickly on the request of the processor.

One thing common to all processors (currently) is the simultaneous presence of two caches.
A first level (known as L1) and a second level (L2).
Most often the producer decides to implement the same cache, the first and second level, on all processors that belong to the same generation architecture.

Processors, capable of the most important performance than the average, also have a third level of memory that is shared between the cores: L3.


buy cpu processor Frequency


Once it was the information that the seller is required to understand the performance he was capable of a processor.
Today, this factor has lost some 'of its importance to preserve the number of cores.
However, it remains a parameter to be evaluated carefully because it indicates the processor speed, but can be a basis of comparison only if all other characteristics (considered one of the CPU) are comparable.

If, for example, we want to compare two quad core processors from the same manufacturer, which belong to the same family and have the same cache, then the one with the largest number in attendance, will also be equipped with the greater speed of execution and therefore , will be the most powerful.

But this argument collapses when we wanted to compare a dual core CPU with one that has fewer than 6 cores.

In this case it is not at all sure that the CPU with 4 cores is more of a performance with 6 core that operates at a lower frequency.

A straight that we feel to be able to give (generalizing) is that a processor that takes 3 or 4 cores and exercising at a frequency of 2.5 GHz (or more) is powerful enough to handle games and applications of a certain level. That is to say, they can easily keep up with the needs of average Italian family.

buy cpu processor Core Turbo and Turbo Boost

As we noted in the section on "Frequency", the processors have reached a degree of evolution that it forces us to consider many things before you can buy one.
Among those also listed two technologies that we have mentioned several times in the course of our reviews.

We refer to the Turbo Core AMD and Intel Turbo Boost.

Both operations are going to change the operating frequency.
The concept on which they are based is very simple.

Because a computer maximizes its processor only in specific activities (image editing, video editing, games, etc.), all the time remaining the processor is operating under what are its real possibilities.

What was found of the engineers?
They made sure that the number of active cores were mild and decreased during the operation frequency is increased because the action can use the right power.
This is a momentary overclocking tends to enhance performance of single core in spite of their massive use.

This translates into significant benefits for the PC. First of all electrical and decrease fuel consumption and, in the case of portable, battery life increases.

We want to bring an example car. Imagine you bought a car from the high displacement. Let's pretend it's a 2000.
We all know that a machine of such features will have significant consumption.
Now imagine you can push a button (in the PC is automatic), which reduces the capacity of the machine at certain times, such as stopping at traffic lights, a traffic jam on the freeway, etc ...

buy a cpu processor Hyper-Threading

Every time we reviewed a notebook with Core i7 i5 or, we always brought up (in addition to the Turbo Boost technology) also Hyper-Threading.
We're talking about, then, only Intel processors.

This technical adjustment to allow processors to take advantage of the double of their physical cores.
Consequently, the executable threads are also doubled.

The performance benefit of approximately 20% (again with the same characteristics! Never compare two different processors in the architecture and functions).

Black Edition & Extreme Edition

The first term is typical of AMD, the second of Intel.
This term tends to diversify a certain class of processors that allow the user to change the multiplier of the internal operating frequency (in other models of the CPU multiplier is fixed irreversibly).

Translated into more direct terms, gamers can enjoy high performance and overclocking the processor-are purchased.

buy cpu processor Storage Controller

The memory controller is a direct support to the RAM, in particular to DDR3.
Usually this channel is double. Only the line Core i7 Extreme processors incorporate a three-channel controller.
It goes without saying that this parameter is important when you need to buy RAM banks.

buy cpu processor Production Technology

Nearly every year the production technology varies and is an indicator of the generation of the processor belongs.
We are referring to the architecture with which a CPU is produced.

At the time of writing, the processors are manufactured with technology from 45 nanometers or 32 nanometers.
The latter is preferred because it allows a lower power consumption and, in any case, the same consumer, the models possess higher operating frequencies.

buy cpu processor Parameter TDP

This parameter indicates the maximum power provided by the manufacturer.
This number is reached only when the CPU run at full speed.
It 'important to consider this value when you need to choose an adequate heat sink.
But in this regard is very useful to buy processors in their retail package that contains both the CPU heat sink is adequate for standard use of the product.

Socket

If you have already have a motherboard that would become essential to check that the socket will then be coupled with the motherboard.
If you buy a computer in full, it is important to check the socket.
It becomes, when you buy the components one at a time and then assemble them.

Multimedia Instructions

What is AMD or Intel processor integrates a set of instructions that accelerate multimedia functions (think of the compressed video content).
The term used to identify these statements is SSE (Streaming SIMD Extensions). The version is indicated by a progressive number: eg, 4.1 - 4.2 etc. ..

buy cpu processor Consumption

When you buy a desktop computer, probably the first thought goes to consumption.
The story is different when you shoot at stake notebook computers.
The consumer is in fact an important discriminating on battery life.

Consumption also depends on the technical characteristics of the CPU.
The higher the frequency, the more cores, more coarse the production process and the higher the consumption.

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