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Windows 7: How many cores do I have in my CPU (name confusion)

10 Jan 2013   #1
Jaypaul97

Windows 7 64-bit
 
 
How many cores do I have in my CPU (name confusion)

Hi, in my DXdiag my CPU is as follows: intel core i5 CPU 650 @ 3.2GHz (4 CPUs),~ 3.2 GHz

Does this mean that I have just a 2 core or a quad core with 4 "threads" whatever that is?


My System SpecsSystem Spec
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10 Jan 2013   #2
bigmck

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

Quote   Quote: Originally Posted by Jaypaul97 View Post
Hi, in my DXdiag my CPU is as follows: intel core i5 CPU 650 @ 3.2GHz (4 CPUs),~ 3.2 GHz

Does this mean that I have just a 2 core or a quad core with 4 "threads" whatever that is?
Here is the scoop on it. ARK | Intel® Core
My System SpecsSystem Spec
11 Jan 2013   #3
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Yes. it means you have 2 physical processor cores on one chip.
Each of those cores is "multithreading" capable. In consumer level Intel processors the number of multithreads is 2.
So you have 2 cores x 2 threads per core = 4 threads.

A "thread" is, simply put, an instruction. In a simple design there is just one instruction allowed per pipeline. A multi-thread design allows for "parallelism" in which one instruction can go out at the same time another can come back, so it can do two things at one time.

This is, of course, a gross simplification. But should give you an idea of how your processor is designed.

Hardware monitoring programs will often show a 2-core multithreading processor as 4 CPU's, because that is how they behave.
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 How many cores do I have in my CPU (name confusion)




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