What is the difference between hyper threading and dual core?

First, the subject is different.

1. Dual-core and four-thread: Hyper-threading is used, that is, applications can use different parts of the chip at the same time.

2. Dual-core: It is 2 cores, and the core, also known as the core, is the most important component of the CPU.

Second, the characteristics are different.

1. Dual-core and four-thread: The core adopts an independent cache design, which is isolated from each other between the two cores inside the processor, and is responsible for the task allocation between the two cores and the synchronization of cache data through the arbiter outside the processor (motherboard northbridge chip).

2. Dual-core: The dual-core processor has built-in advanced hardware-assisted security functions and maintenance technology to fully ensure application security.

Third, the technology is different.

1. Dual-core and four-thread: It uses special hardware instructions to simulate two logical cores into two physical chips, so that a single processor can use thread-level parallel computing, which is compatible with multi-threaded operating systems and software, and reduces the idle time of the CPU.

2. Dual-core: Each CPU integrates 1M cache, the process is 90nm, and there is no hyper-threading technology.

The general dual-core refers to dual-core dual-threaded, and the biggest difference is that the overall performance of dual-core and four-threaded processors is higher than that of dual-core and dual-threaded processors.

Dual-core and four-thread: The processor adopts hyper-threading technology, and each processor can alternately handle the tasks of two threads, and the performance of the CPU has been greatly improved.

Hyper-threading technology uses special hardware instructions to simulate two logical cores into two physical chips, so that a single processor can use thread-level parallel computing, which is compatible with multi-threaded operating systems and software, reducing the idle time of the CPU and improving the operating efficiency of the CPU.

Therefore, the CPU that supports Intel hyper-threading technology, after turning on the hyper-threading setting and allowing hyper-threading to run, the number of CPUs seen in the operating system is twice the actual number of physical CPUs, that is, 1 CPU can see two, and two can see four. CPUs with hyper-threading technology need chipset and software support to give full play to the advantages of this technology.

Dual-core quad-threading, implemented by Intel's hyper-threading technology, emulates one physical core into two cores.

The efficiency of a single physical core is improved, but the simulated dual-threaded performance is largely dependent on the single-core performance.

There is no direct relationship between the performance of the CPU and the frequency of the CPU, but the higher the performance of the CPU of the same series, the better.

The performance of these two CPUs needs to be tested to see the high and low, In my experience, the main frequency of dual-core quad-thread should be the ultra-low voltage version of the ultra-low voltage version of the ultrabook i3 The dual-core processor you said should be the desktop version of the Pentium dual-core, so the performance of the former is not as good as the latter.

Dual-core quadruple threads are about the same as quad-core" This can be understood to a certain extent, but it is still a dual-core in nature.

In terms of performance, if you compare Intel with AMD, i3 2120 (dual-core quad-thread) and Phenom 955 (physical quad-core) performance is equal, Intel compares i3 and i5 (physical quad-core) far worse.

Pure hand-played, I hope it helps you.

As the core component of the computer, the quality of the CPU directly affects the performance of the computer. Here's what I've brought to you about the difference between multicore and hyper-threading, welcome to it!

Difference Between Multicore and Hyper-Threading:

In the task manager of windows the information of the cpu is displayed (below), several rectangular boxes on the right indicate how many cpus there are, from the image below, it seems that there are 4 cpu on my machine, but in reality?

Actually I probably have 4 separate CPUs on my machine, or a CPU with 2 dual cores, or a CPU with 2 dual cores with hyper-threading ,......There are many possibilities, and the performance gap can be significant.

Why? Let's start with the concept of multicore. To put it simply, a multi-core CPU is equivalent to multiple single-core CPUs, for example, the dual-core Intel T7300 has about the same performance as 2 single-core CPUs of the same specification, (it may be a little worse, for example, the L2 cache is shared).

On motherboards that only support a single CPU (as most PC motherboards do), using a multi-core CPU can significantly increase the speed of computing.

As opposed to multi-core, hyper-threading refers to having multiple threads on the core of a CPU, usually two. CPUs that don't support hyper-threading will only run one instruction at a time, which creates the problem that this instruction may only use 50% of the CPU's circuitry, and 50% is idle, so computing resources are wasted. So Intel proposed hyper-threading technology, if the two adjacent instructions can be executed at the same time without affecting each other, then the CPU will optimize the process to achieve the effect of improving the computing speed, but the effect is not obvious in the actual use process.

So, even if there are two boxes in the task manager, it doesn't mean that you are using a dual-core CPU, such as the Atom N450, and most Atom chips are single-core and dual-threaded. Before buying a computer, it is better to check the information first, so as not to be fooled by the merchant.

A multi-core processor is the integration of two or more complete computing engines (cores) in a single processor. The development of multicore technology was born out of the realization by engineers that simply increasing the speed of a single-core chip would generate too much heat and would not deliver the corresponding performance improvements, as was the case with previous processor products.

They recognized that at that rate in previous products, the processor would quickly generate more heat than the surface of the sun. Even without the heat issue, the price/performance ratio is unacceptable, and the slightly faster processor** is much higher.

1.What is a multi-core processor.

2.What is Intel Hyper-Threading Technology.

3.In Linux, CPU information is explained in detail (cpuinfo, multi-core, multi-thread):

4.What is the difference between a 4-core motherboard and a dual-core motherboard?

5.Ultra-affordable high-end bulk CPU recommended.

6.CPU recommendations for playing CSOL2.

7.High-end processors are recommended.

8.How to improve multithreaded programs.

What is the difference between dual-core quad-thread and general dual-core? Hello dear friends<><

Dual-core quad-thread is like two highways with a dedicated lane, and with the effective support of software, this feature is energy-efficient and significantly more efficient.

1. The main body is different 1. Dual-core and four-thread: The use of hyper-threading means that the application can use different parts of the chip at the same time. 2. Quad core:

A processor based on a single semiconductor has four processor cores with the same function. 2. Different characteristics 1. Dual-core and four-thread: The chip can be multi-threaded at the same time, so that the performance of the chip can be improved.

2. Quad-core: It is characterized by a function called "wide dynamic execution". More importantly, it operates at a lower power consumption than the Netburst architecture, which provides processing power for the Pentium 4.

3. Different advantages 1. Dual-core and four-thread: In a CPU that executes multiple programs at the same time and shares the resources in a CPU, theoretically two threads need to be executed at the same time like two CPUs, and the P4 processor needs to add an additional logical CPU pointer (logical processing unit). 2. Quad core:

It is faster for a CPU to open four programs than for a dual-core CPU to open four programs, and multi-core has a greater advantage in large data volume calculations. If you think it's useful, give it a thumbs up, I hope mine is helpful to you, I hope it can help you. <>