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How many cores are actually in a 'core i5'

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Tyler_767   09-25-2009 at 05:03:18 AM

So either I missed something somewhere or most likely just dont comprehend it. But with the new intel core i5 or some i7's with the integrated graphics on the same die, how many cores are there actually? since one core is the graphics..

So does this mean a quad core is actually 3 core cpu 1 core gpu.. or is it still 4 core cpu, 1 gpu making it a 5 core?
thnx

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Bronze CPUs badge cjl   09-25-2009 at 05:12:27 AM

None of the currently available Intel CPUs have graphics on die. That is planned, but currently unavailable. From what I can tell, i5 CPUs are those which have 4 threads. This means they are either 4 cores without SMT (1 thread per core) or dual cores with SMT (2 threads per core). Currently, the i5-750 is the only i5 available, and it is a quad core without SMT.

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archibael   09-25-2009 at 06:03:03 AM

What he said. The i5-7xx processors are four cores, four threads. From what I gather from branding rumors, i5-6xx will be two cores, four threads + graphics.

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jimmysmitty   09-25-2009 at 06:14:02 AM

I also think there will be a i5 with 4 CPU cores and 8 threads. Or will they retain that for Cire i7 LGA1366.

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era86   09-25-2009 at 06:24:16 AM

Core i7 on 1156 also has 4 cores and HT (8-threads). The Havendale I believe will have the GPU on die. 1155 chipset?

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Bronze CPUs badge WR2   09-25-2009 at 06:28:33 AM

Core i7 / Core i5 = Four CPU cores only:
http://images.anandtech.com/reviews/cpu/intel/lynnfield/review/LFDDieLayout.jpg
from this article

Future un-named CPU in the Westmere family will have the CPU and GPU in the CPU package:
http://images.anandtech.com/reviews/cpu/intel/westmere/westmeredie.jpg


Message edited by WR2 on 09-25-2009 at 06:29:12 AM
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Bronze CPUs badge cjl   09-25-2009 at 06:32:51 AM

jimmysmitty wrote :

I also think there will be a i5 with 4 CPU cores and 8 threads. Or will they retain that for Cire i7 LGA1366.


I think the naming system is based on number of threads. i3 = 2 threads, i5 = 4 threads (whether via a dual with SMT or a quad without), i7=8 threads, and possibly i9=12 threads.

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Bronze CPUs badge WR2   09-25-2009 at 06:32:53 AM

After that you'll have SandyBridge which will have the GPU on the same silicon as the CPUs:
http://hb.beareyes.com.cn/2/lib/200908/15/022/1.jpg

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jimmysmitty   09-25-2009 at 07:13:48 AM

cjl wrote :

I think the naming system is based on number of threads. i3 = 2 threads, i5 = 4 threads (whether via a dual with SMT or a quad without), i7=8 threads, and possibly i9=12 threads.



SO then Core i13 would mean 16 threads? Or Core i14..... Man this will hurt my head....

WR2 wrote :

After that you'll have SandyBridge which will have the GPU on the same silicon as the CPUs:
http://hb.beareyes.com.cn/2/lib/200908/15/022/1.jpg



Interesting. So I think its going to have the GPU connected to the L3 as well/. Wounder what that will do for it.

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Bronze CPUs badge cjl   09-25-2009 at 07:41:28 AM

jimmysmitty wrote :

SO then Core i13 would mean 16 threads? Or Core i14..... Man this will hurt my head....


Who knows. Maybe they'll abandon that naming system before that would happen...

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loneninja   09-25-2009 at 09:25:09 AM

cjl wrote :

I think the naming system is based on number of threads. i3 = 2 threads, i5 = 4 threads (whether via a dual with SMT or a quad without), i7=8 threads, and possibly i9=12 threads.



That wouldn't work, I3 is a dual core with HT to enable 4 threads.

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zipzoomflyhigh   09-25-2009 at 02:25:47 PM

Tyler_767 wrote :

So either I missed something somewhere or most likely just dont comprehend it. But with the new intel core i5 or some i7's with the integrated graphics on the same die, how many cores are there actually? since one core is the graphics..

So does this mean a quad core is actually 3 core cpu 1 core gpu.. or is it still 4 core cpu, 1 gpu making it a 5 core?
thnx



Yet another person that is incapable of typing INTEL.com. All your answers are there.

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randomizer   09-25-2009 at 02:52:19 PM

jimmysmitty wrote :

I also think there will be a i5 with 4 CPU cores and 8 threads. Or will they retain that for Cire i7 LGA1366.


That would mean no distinction between i5 and i7.

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fazers_on_stun   09-25-2009 at 03:42:02 PM

cjl wrote :

Who knows. Maybe they'll abandon that naming system before that would happen...



Rumor has it the next series will be called "Cores-a-Plenty" :D

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TechnologyCoordinator   09-25-2009 at 03:45:46 PM

fazers_on_stun wrote :

Rumor has it the next series will be called "Cores-a-Plenty" :D



AMD has their "Magny-Cours Multiprocessor" or MCM as I like to call it.

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Scotteq   09-25-2009 at 03:48:16 PM

"Mangy~Cur?"

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Bronze CPUs badge cjl   09-25-2009 at 05:59:38 PM

loneninja wrote :

That wouldn't work, I3 is a dual core with HT to enable 4 threads.


I'm pretty sure that i3 is a dual without SM, with only 2 threads, and that duals with SMT enabled would be branded as i5.

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Bronze CPUs badge WR2   09-25-2009 at 07:51:49 PM

i3, i5 and i7 are replacing Celeron, Pentium and C2D/C2Q. Basically i3 are entry level CPUs, i5 are mainstream parts and i7 performance/enthusiast. It's more about 'branding' than how many cores or threads.

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archibael   09-25-2009 at 08:13:47 PM

The Pentium brand stays, below i3.

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fazers_on_stun   09-26-2009 at 12:26:47 AM

archibael wrote :

The Pentium brand stays, below i3.



Surprised they don't call it an aye-aye, as in "Aye-aye, 3 bags full Sir!" :D.

OTOH, AMD already beat Intel to the last level - they have the 'eye-finity' :).

For our dear friend jennyh, I'd suggest a specially branded CPU - the X-eye-X (a Crossfired i-core, or cross-eye for short :D)

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warmon6   09-26-2009 at 04:12:45 AM

fazers_on_stun wrote :

Surprised they don't call it an aye-aye, as in "Aye-aye, 3 bags full Sir!" :D.

OTOH, AMD already beat Intel to the last level - they have the 'eye-finity' :).

For our dear friend jennyh, I'd suggest a specially branded CPU - the X-eye-X (a Crossfired i-core, or cross-eye for short :D)



:lol:

Quote :

jimmysmitty

cjl wrote :

I think the naming system is based on number of threads. i3 = 2 threads, i5 = 4 threads (whether via a dual with SMT or a quad without), i7=8 threads, and possibly i9=12 threads.



SO then Core i13 would mean 16 threads? Or Core i14..... Man this will hurt my head....



Well for the Core I(x) it would be odd numbers. i5 i7 i9 i11 i13 ect.

cores/ht

i5: 4/4
i7: 4/8
i9: 6/12
(if they continue this trend then it should go like this)
i11:8/16
i13 10/20
Ect.

cant say it hurts may head.

Reply to warmon6
amdfangirl   09-26-2009 at 04:16:31 AM

Yeh, and if you get a dual socket mobo and stick an i7 and an i11 in a Hordirc Cube, you get a puppy


Message edited by amdfangirl on 09-26-2009 at 04:16:50 AM
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archibael   09-26-2009 at 05:23:19 AM

It would be i5, i7, i9, iB, and iD if we were consistent with our inner computer nerd.

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