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What is the Difference Between a Core and Logical Processor? (Explained)

What is the Difference Between a Core and Logical Processor? (Explained)

A processor is required for every computer to work, whether it be a modest efficiency processor or a massive performance powerhouse. Of course, the processor, often known as the CPU or Central Processing Unit, is an essential component of every working system, but it is far from the only one. 

Today’s CPUs are almost all dual-core, which means that the entire processor comprises two independent cores with which to handle data. But what are the differences between processor cores and logical processors, and what do they perform?

In this article, you’ll learn about core and logical processors and exactly the difference between them.

What Is a Core Processor?

A processor core is a unit of processing that reads instructions and executes them. Instructions are linked together to create your computer experience when run in real-time. Your CPU must literally process everything you do on your computer.

When you open a folder, your processor is required. When you type into a word document, your processor is also required. Your graphics card—which has hundreds of processors to quickly work on data simultaneously—is responsible for things like drawing the desktop environment, windows, and gaming visuals. They do, however, still require your processor to some extent.

Core Unit
The core is the unit that reads the instruction and executes them.

How Do Core Processors Work?

Processor designs are incredibly sophisticated and differ greatly between brands and models. Processor designs are always being improved in order to provide the best performance while using the least amount of space and energy. 

Regardless of architectural changes, when processors process instructions, they go through four main steps:

  • Fetch
  • Decode
  • Execute
  • Writeback


The fetch step is exactly what you’d anticipate. The processor core obtains instructions that have been waiting for it, which are normally stored in memory. This could include RAM, but in current processor cores, the instructions are normally already waiting for the core inside the processor cache. 

The program counter is a section of the processor that functions as a bookmark, indicating where the previous instruction stopped and the next one began.


It then proceeds to decode the immediate command after retrieving it. Instructions that require various sections of the processor core, such as arithmetic, must be decoded by the processor core. 

Each portion has an opcode that tells the processor core what to do with the data that follows it. The separate parts of the processor core can go to work once the processor core has sorted it all out.


The execute step is when the processor figures out what it needs to perform and then does it. What happens here varies based on the processor core in question and the data entered. 

The processor, for example, can perform arithmetic within the ALU (Arithmetic Logic Unit). This device can be connected to a variety of inputs and outputs in order to crunch numbers and provide the appropriate result.


The final step, known as writeback, simply stores the outcome of the previous steps in memory. The output is routed according to the needs of the running application, but it is frequently stored in CPU registers for rapid access by the next instructions. 

It’ll be handled from there until sections of the output need to be processed again, at which point it may be saved to RAM.

Core Processor
Core processing has four steps.

What Is a Logical Processor?

It’s a lot easier to define logical processors now that we know what is core. The number of cores that the operating system sees and can address is measured in logical processors. As a result, it’s the sum of the number of physical cores and the number of threads each core can handle (multiplication).

For example, assume you have an 8-core, 8-thread CPU. There will be eight logical processors available to you. The number of physical cores (8) multiplied by the number of threads they can handle equals this figure. 

But what if your CPU has hyperthreading capabilities? So an 8-core CPU will have 8 * 2 = 16 logical processors because each core can handle two threads.

Which Is Better?

What do you think is more valuable? Physical cores or logical processors? The answer is simple: physical cores. 

Remember that you’re not processing two threads at the same time with multithreading, you’re simply scheduling them such that the one physical core can handle them as efficiently as feasible. 

In workloads that are well parallelized, such as CPU rendering, logical processors (or Threads) will only provide a 50 percent performance boost. In such workloads, physical cores will show a 100 percent performance boost.

Processor, core, Logical processor, virtual processor

Different Types of Processor

The many types of processors are created in distinct architectures, such as 64-bit and 32-bit, for optimal speed and flexibility. The most prevalent types of CPUs are single-core, dual-core, quad-core, Hexa-core, octa-core, and deca-core, as listed below:

Single-core CPU-Can execute only one command at a time.
-Inefficient when it comes to multitasking.
-If more than one software is running, there is a discernible drop in performance.
-If one surgery has begun, the second should wait until the first has been completed.
Dual-core CPU-Two processors are combined into a single box. 
-Hyper-threading technology is supported (though not in all dual-core Intel CPUs). 
-64-bit instructions are supported. 
-Capacity for multitasking and multithreading (Read more below) 
-Multitasking is a breeze with this device. 
-It uses less power. 
-Its design has been thoroughly tested and proven to be reliable.
Quad-core CPU-Is a chip that has four distinct units called cores that read and execute CPU instructions like add, move data, and branch.
-Each core interacts with other circuits on the semiconductor, such as cache, memory management, and input/output ports. 
Hexa Core processors-It’s another multi-core CPU with six cores that can perform tasks faster than quad-core and dual-core processors.
-Is simple for users of personal computers, and Intel has now launched the Inter core i7 in 2010 with a Hexa core processor.
-Hexacore processors are now accessible in cellphones.
Octa-core processors-Are made up of a pair of quad-core processors that divide tasks into distinct categories.
-In the event of an emergency or demand, the quick four sets of cores will be triggered. 
-The octa-core is perfectly specified with dual-code core and adjusted accordingly to provide the best performance.
Deca-core processor-It’s more powerful than other processors and excels at multitasking.
-Most smartphones today come with Deca core CPUs that are low-cost and never go out of style.
-Most gadgets available in the market have this new processor that gives customers a better experience and additional functions which are quite helpful.
Different types of processors


  • A core is a unit of processing that reads instructions and executes them.
  • When processors process instructions, they go through four steps.
  • Multiple cores are possible in a CPU.
  • The number of logical processors refers to the number of CPU Threads that the operating system can see and address.
  • The core can boost your performance and help you in doing your work more quickly.
  • Core processing goes through four main steps.

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