A newbie question! Why a QuadCore PC have 8 cores?

giuseppesanna · 2014-10-22 18:56:05

Hi! Finally now my PCs with CrunchBang are working with success.

But I've a simple question. A curiosity...

Why my QuadCore Laptop (i7-3630QM) has 8 differents CPUs such you can see in this picture?
CPUs Screenshoots

Thanks very much!

P.S. I'm sorry for my terrible english!

Best explanation:

Different55 wrote:

Because of Hyperthreading. Intel has a feature called Hyperthreading on some of its CPUs that lets them run 2 threads per CPU at once under some conditions. If you ran windows 7 on your computer, it would tell you that you have 4 physical cores and 4 logical cores.
You can read more about it here: http://en.wikipedia.org/wiki/Hyper-threading

Last edited by giuseppesanna (2014-10-24 07:56:05)

CSCoder4ever · 2014-10-22 18:58:01

Your Quad core has 8 threads because i7's are hyperthreaded. that's why.

It's still just a quad core though.

Last edited by CSCoder4ever (2014-10-22 18:59:05)

Different55 · 2014-10-22 19:00:04

Short answer: Because of Hyperthreading. Intel has a feature called Hyperthreading on some of its CPUs that lets them run 2 threads per CPU at once under some conditions. If you ran windows 7 on your computer, it would tell you that you have 4 physical cores and 4 logical cores.

You can read more about it here: http://en.wikipedia.org/wiki/Hyper-threading

Head_on_a_Stick · 2014-10-22 19:00:22

Your i7 uses Hyperthreading -- each cores can run 2 "threads"

EDIT: Ninja'd -- damn internet connection...

Last edited by Head_on_a_Stick (2014-10-22 19:01:35)

CSCoder4ever · 2014-10-22 19:03:12

Now that I think about it... This question could've EASILY been googled.

Head_on_a_Stick · 2014-10-22 19:04:05

^ That's how I answered it

CSCoder4ever · 2014-10-22 19:06:18

If anyone is going to ask a legit newbie question, let it be: How do I use google?

giuseppesanna · 2014-10-22 19:23:55

Ok! Ok! Thanks for first questions! First of all @Different55

CSCoder4ever wrote:

Now that I think about it... This question could've EASILY been googled.

If I don't know the threads, how could I search "threads" and "Hyperthreading"? 8)

Anyway thanks! Now I read the Hyperthreading documentation!

Bye!

Unia · 2014-10-22 19:31:58

CSCoder4ever wrote:

Now that I think about it... This question could've EASILY been googled.

The problem is that if you're new to all this, you often don't know what terms to use in your search.

KrunchTime · 2014-10-23 00:37:28

@Unia: +1

C'mon, guys. Give him/her a break. We all post embarrassing things once-in-awhile.

TicTac · 2014-10-23 01:06:12

KrunchTime wrote:

@Unia: +1
C'mon, guys. Give him/her a break. We all post embarrassing things once-in-awhile.

Thank you, "your" particular attitude is truly appreciated. Thought for a moment, I was reading a Debian thread. Been a long time user of #! and lurker here... As is functionally true with most of life, there's never a stupid question but only overly and overtly arrogant answers.

Again, your response was appreciated.

Sector11 · 2014-10-23 12:27:18

@ giuseppesanna

First off: Welcome to the Darkside.

Next: I see from the other posts you have here that it looks like you are not new to Linux just CrunchBang. And not only asking questions but sharing results. Awesome keep it up, we appreciate members like that.

I see nothing wrong with your question. So I have a one for you. :)

Does lmsensors see the "8 cores" as well?

Using Sensors

Why not pop over to The New Monster Conky Thread and share yours. :D

@ TicTac & KrunchTime & Unia
A HUGE +1 to you three. I must have worn anonymous out with my questions when I first joined the forums. He and omns certainly are missed. That's the nicest thing about these forums, we at CrunchBang have a reputation of helping people. Lets keep it up.

Unia · 2014-10-23 13:11:06

Sector11 wrote:

I must have worn anonymous out with my questions when I first joined the forums. He and omns certainly are missed.

I can relate all too well

giuseppesanna · 2014-10-24 07:54:32

Sector11 wrote:

@ giuseppesanna
First off: Welcome to the Darkside.
Next: I see from the other posts you have here that it looks like you are not new to Linux just CrunchBang. And not only asking questions but sharing results. Awesome keep it up, we appreciate members like that.

The sharing is all!

I appreciate you! The arrogants are everywhere, but in this forum are many people polite and helpful. This is the important!
I write and answer in many forum, but this is the best that I know!

Anyway, Thanks all very much!
The Next!

Sector11 · 2014-10-24 17:01:47

^ Thank you. - Grazie

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#1 2014-10-22 18:56:05

A newbie question! Why a QuadCore PC have 8 cores?

#2 2014-10-22 18:58:01

Re: A newbie question! Why a QuadCore PC have 8 cores?

#3 2014-10-22 19:00:04

Re: A newbie question! Why a QuadCore PC have 8 cores?

#4 2014-10-22 19:00:22

Re: A newbie question! Why a QuadCore PC have 8 cores?

#5 2014-10-22 19:03:12

Re: A newbie question! Why a QuadCore PC have 8 cores?

#6 2014-10-22 19:04:05

Re: A newbie question! Why a QuadCore PC have 8 cores?

#7 2014-10-22 19:06:18

Re: A newbie question! Why a QuadCore PC have 8 cores?

#8 2014-10-22 19:23:55

Re: A newbie question! Why a QuadCore PC have 8 cores?

#9 2014-10-22 19:31:58

Re: A newbie question! Why a QuadCore PC have 8 cores?

#10 2014-10-23 00:37:28

Re: A newbie question! Why a QuadCore PC have 8 cores?

#11 2014-10-23 01:06:12

Re: A newbie question! Why a QuadCore PC have 8 cores?

#12 2014-10-23 12:27:18

Re: A newbie question! Why a QuadCore PC have 8 cores?

#13 2014-10-23 13:11:06

Re: A newbie question! Why a QuadCore PC have 8 cores?

#14 2014-10-24 07:54:32

Re: A newbie question! Why a QuadCore PC have 8 cores?

#15 2014-10-24 17:01:47

Re: A newbie question! Why a QuadCore PC have 8 cores?

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