What is a computer CPU?

On the market there are many computers with different core processor lines, making you confused about which one to choose. The following sharing will help you understand What is core?as well as the characteristics and differences between core i5 and i7.

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On the market, there are many computers with different core processor lines, making you confused about which one to choose. The following sharing will help you understand What is core?, as well as the characteristics and differences between core i5 and i7. Thanks to that, you will have the most accurate and economical choice.

What is Core?

Core is a term used to refer to CPU specifications and is used by Intel for mid- to high-end processor lines, applicable to personal computers and desktop computers.

Intel’s first generation of core chips is core Duo, core 2 Duo. They were quite popular on PCs and laptops in 2006 – 2008. Currently, new generations of core processors have appeared such as core i3, core i5, core i7, core i9, which have replaced core Duo or core 2 Duo.


What is Core i7?

This is a 22nm processor equipped with 4 cores and 8 threads by the manufacturer. Along with core i9, core i7 is classified as the most powerful processor group of Intel. Core i7 uses Turbo Boot technology for fast processing speed. Besides, it also supports Hyper Threading Technology (hyperthreading technology) capable of allowing processing of multiple data streams.

It is because of this structure and features that core i7 is often used for powerful configuration laptops, in the mid- to high-end segment such as ultrabooks, business laptops, laptops used for gaming.

For business-class laptops, U-type chips are often used to prolong use. Laptops for gamers, H or HQ series to enhance gaming performance to the maximum. As for laptops used for graphics and effects, Core i7H, HQ will help reduce rendering time and improve work quality.

Core i7 series

Core i7 processor has many lines. Each line is distinguished by numbers (alphanumeric). Therefore, their naming formula is defined as processor name + brand name + brand modifier (if any) + chip generation number + 3 SKU digits + suffix.

Suffix symbols including alphanumeric prefix and product prefix will help you to classify and know the characteristics of the processor. Specifically, the common letter symbols:

E (short for Embedded mobile processors): This is a CPU with a power-saving core, often used for Desktop. M (short for Mobile processors): This is a high performance CPU and application for Laptop or mobile devices. K (short for Unlocked): The processor allows you to overclock the processor above its level. Q (short for Quad-Core): This is a processor with 4 physical cores. U (short for Ultra Low Power): A processor for laptops. They consume less power and are good for the battery. Y (short for Low Power): This processor is often found on older generation laptops. T (short for Power Optimized): The processor is capable of optimizing power for desktop computers. H (short for High-Performance Graphics): This is a chipset that contains one of Intel’s best graphics cards. G (short for Includes Discrete Graphics): This is a dedicated CPU used for notebook computers. X (short for Extreme): This is the CPU for the highest performance.

For example, the Intel Core i7 7700HQ is a 7th generation Intel Core chip, using quad core (Q) and high graphics performance (H).


What is Core i5?

This is a 32nm processor consisting of 2 types: 2 cores 4 threads and 4 cores 4 threads. This chip is also equipped with Turbo Boot technology like core i7 to automatically overclock. That is, the ability to increase processing speed. If compared in terms of cost, core i5 brings high efficiency.

Core i5 series chips are often used for mid-range devices that need a lot of processing power.

What is Core i3?

Compared to the above two types, this is a lower segment. Core i3 is a 32nm processor, with 2 cores with 4 processing threads. This chip is used for popular and mid-range computers, to ensure the handling of common needs of users, such as office work.

What is the difference between Core i5 and Core i7?

In order to help you easily choose the right computer for your needs, Hosting Viet compares the differences between core i5 and core i7 chips. Specifically, their technical characteristics have the following differences:

Multiplier, thread count and clock level

The multiplier is the number of processors. The more the multiplier, the more powerful and faster the computer runs.

– The number of threads is the number of lines transmitted to the processor or from the processor to the output. The larger this number is, the faster the data transfers and the faster the processing speed.

– Clock is the processing speed of the CPU. The higher the clock, the more powerful the CPU and the correspondingly larger amount of heat.

Core i5 8th generation has 4 cores, 6 threads and core i7 has 6 cores and 12 threads. Meanwhile, the older generation line like core i5-6300U has a lower number of threads, it has 4 threads. Therefore, when it comes to performance between core i5 and core i7 CPUs, there is almost no difference, they are almost equivalent when compared within the same generations.

Even the core i5 CPU sometimes gives a higher clock rate than the core i7 chip. This means, core 4 using high clock speed will be more powerful than core 6 with low clock speed when working together in applications that do not need many cores. However, for applications that require a lot of cores, core 6 will be faster and promote good multitasking. If there are more 6 cores combined with high clock speed they will be faster.

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Hyper-Threading Technology

Previously, when Hyper-Threading technology did not exist, the number of physical cores of the processor reflected the number of computational processes that the CPU performed at the same time. This means, for a single core CPU, only one algorithm can be processed.

In order to overcome this drawback, Hyper-Threading technology was researched and born. Because the technology has the ability to expand the speed of multi-threaded processing with many processes on the same character at the same time, by dividing the resources used.

While core i7 supports Hyper-Threading technology, core i5 does not. Therefore, if your needs need a powerful 4-core chip, you should choose core i7.


Turbo Boost Technology

This is a technology that helps improve system performance for a strong operating system, and at the same time, prolongs battery life. Turbo Boost is an Intel-exclusive technology that improves the processor clock speed as required by the application.

Both core i5 and core i7 lines use Turbo Boot technology to increase clock speed when needed. This has a very positive connotation. That is, in a normal working environment the processor line consumes less power and with heavy duty applications they automatically increase the speed. Therefore, the number of clocks described for each product line generation is not fixed for the i5 and i7 chips.


Cache Size

In addition to the technology used, the biggest difference between core i5 and core i7 is the cache size. This is the processor’s own memory, they have the same operating principle as RAM memory. If this parameter is small, it will affect the running speed of the computer.

Therefore, the larger the cache size, the better. Because the processor will store a task that is repeated many times in the cache. If the processor is capable of caching multiple tasks, it will perform well and quickly when that task occurs.

Core i5 cache capacity is from 3MB – 6MB, and core i7 series is 4MB – 8MB.

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When I understood What is core? The rest is based on your needs to choose a computer with the right core type, to avoid waste. If only used for office work, manipulating with Microsoft Office normally, core i3 is completely responsive. For work related to graphics, image design, and video at an average level, you should choose core i5. If the need for use is higher, choosing a core i7 with 4 cores with 4 processing threads is appropriate.


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