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These days, most CPUs are dual-core, quad-core, or octo-core. But what does that even mean? Here"s everything explained.

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When purchasing a new máy tính xách tay or building a computer, the processor is the most important decision. But there's a lot of jargon, especially the cores. For example, bởi you need a dual-core processor, a quad-core, a hexacore, an octa-core, or more?

Let's cut the jargon & understand what it all really means.

Dual-Core vs. Quad-Core, Explained

Here's everything you need to know:

There is always only one processor chip. That cpu can have one, two, four, six, eight, ten, twelve, or even sixteen cores. So if you find a "single core" CPU, that means the processor chip has one core. And a dual-core processor has two cores, a quad-core has four, a hexa-core has six, an octa-core has eight, and so on. Currently, an 18-core processor is the best you can get in consumer PCs. I mean, you could buy a 64-core AMD Threadripper, which is available to consumers, but that's more processing power than most regular consumers could think of using.

This article đơn hàng with dual-core vs. Quad-core processors for computers, not for smartphones. We have a separate post on understanding điện thoại thông minh cores.

The Difference Between Dual-Core and Quad-Core CPUs


You might think more cores will make your processor faster overall, but that's not always the case. It's a little more complicated than that.

More cores are faster only if a program can split its tasks between the cores. Not all programs are developed to split tasks between cores. More on this later.

Each core's clock tốc độ is also a crucial factor in speed, as is the architecture. A newer dual-core CPU with a higher clock tốc độ will often outperform an older quad-core CPU with a lower clock speed.

Power Consumption

More cores also lead to lớn higher power consumption by the processor. When the processor is switched on, it supplies power khổng lồ all the cores, not just one at a time.

Chip makers have been trying to reduce nguồn consumption and make processors more energy efficient. But as a general rule of thumb, a quad-core processor will draw more power nguồn from your máy tính xách tay (and thus make it run out of battery faster).

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More Cores Equal More Heat

More factors than the bộ vi xử lý core affect the heat generated by a processor. But again, as a general rule, more cores lead lớn more heat.

Due khổng lồ this additional heat, manufacturers need to địa chỉ better heat sinks or other cooling solutions.

Are Quad-Core CPUs More Expensive Than Dual-Core?

More cores isn't always a higher price. Lượt thích we said earlier, clock speed, architecture versions, and other considerations come into play.


Here's the dirty little secret that cpu manufacturers don't want you khổng lồ know. It's not always about how many cores you are running; it's about what software you are running on them.

Programs have khổng lồ be specifically developed lớn take advantage of multiple processors. In the past, "multi-threaded software" wasn't as common, although as it's near-impossible to buy a single-core CPU these days, this issue isn't once what it was.

However, it's important to lưu ý that even if it's a multi-threaded program, it's also about what it is used for. For example, the Google Chrome web browser supports multiple processes, as does video clip editing software Adobe Premiere Pro.

Adobe Premiere Pro instructs different cores to lớn work on different aspects of your edit. Considering the many layers involved in đoạn phim editing, this makes sense, as each chip core can work on a separate task.

Similarly, Google Chrome instructs different cores to work on different tabs. But herein lies the problem. Once you open a web page in a tab, it is usually static after that. There is no further processing work needed; the rest of the work is about storing the page in the RAM. This means even though the bộ vi xử lý core can be used for a background tab, it is unnecessary.

Chuyên mục: Tin Tức