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Core 2 Duo vs. Dual Core

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November 28, 2007 12:28:41 PM

What is the difference(s) between CORE 2 DUO vs. DUAL CORE?

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More about : core duo dual core

November 28, 2007 12:38:46 PM

Core 2 Duo is the second gen of Dual core. People just abbreviate it now to Dual Core.
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November 28, 2007 12:38:50 PM

U mean Pentium D vs Core2Duo ?
well if u mean this then one word : Core2Duo Destroys the Pentium D
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November 28, 2007 1:05:37 PM

Dual Core means what looks like a single CPU on the outside actually contains two seperate processors on the inside. Quad Cores contain 4 cores. These all fit into a single socket.

There are a large number of "Dual Core" processors on the market.
The "Core 2 Duo" is one of these and is the fastest.

Both Intel and AMD have been making Dual Core processors for a few years now.
November 28, 2007 1:19:54 PM

Core 2 Duo is just Intel's name for their dual core processors. They are based on Intel's Core microarchitecture, as opposed to their previous Netburst, and are currently the fastest chips available.
November 28, 2007 1:24:49 PM

Hey guys, I'm not sure about this, but I think the OP is referring to the E2XXX series, the ones based off the Allendale core. They are listed in a separate section of "dual-core" under Newegg's search feature, so that might be what he is thinking of.
@OP: if that be the case, then the only difference is that the L2 cache on the E2XXX is 1MB, whereas the E4XXX series have 2MB.
November 28, 2007 1:44:47 PM

and the E6*** has 4mb!
November 28, 2007 1:56:40 PM

quantumsheep said:
and the E6*** has 4mb!


The E6300 and E6400 have 2mb but the rest have 4mb
November 28, 2007 3:07:58 PM

Though try and be a little careful with the names, especually when looking at notebooks. Quite easy to read Core Duo instead of Core 2 Duo, and not all dual cores are the same.
November 28, 2007 3:43:03 PM

That's the way I took it...
November 28, 2007 3:49:33 PM

Wow, I think the OP just needs to go to Intel's website and check out the processor families. The lineup includes CPUs with 1mb, 2mb, and 4mb L2 cache sizes with various FSB speeds as well. Check it out.
November 28, 2007 3:57:09 PM

JPT1 said:
What is the difference(s) between CORE 2 DUO vs. DUAL CORE?


Whelp:

Intel Core 2

Pentium D

The both contain 2 cores (processors) in a single package like Zenmaster pointed out, and the Pentium D is a predecessor, which is something to stay away from... Unless you need to warm up a room during those cold winter nites. :whistle: 
November 28, 2007 4:07:37 PM

Old pentium Ds have been discontinued and the new ones are based on the conroe chips but have crippled cache. So the code name is allendale.
November 28, 2007 5:05:25 PM

intel is just dumb with their naming conventions.

Core 2 Dual Core Quad Oct 4 Quad Duo-Duo???

But at this point it doesnt matter. Hell, they could name their cpus "monkeybutt" and they would still sell.
November 28, 2007 6:01:39 PM

Grimmy said:
Actually the 6320 and 6420 have 4MB.

Intel Core 2 Duo E6420 Conroe 2.13GHz 4M shared L2 Cache LGA 775 Processor

:D 




Grimmy with all due respect that's why I said E6300 and E6400 because all the other E6*** models have 4MB but those two are 2MB. Not that there is any reason to buy either of them anymore since the E6750 is about $11 more than the E6300.
November 28, 2007 6:30:21 PM

ausch30 said:
Grimmy with all due respect that's why I said E6300 and E6400 because all the other E6*** models have 4MB but those two are 2MB. Not that there is any reason to buy either of them anymore since the E6750 is about $11 more than the E6300.


Well, I was just mentioning that there are 4M chips, it's just it has the #20 in them. So don't freak out, I wasn't trying to correct ya.

Actually the 6750 is 10 bucks cheaper then the 6420 on newegg.

:lol: . o O (wonder is intel is thinking, crap our nose is bleeding, I know, we'll cut our neck, dat should do it)
November 28, 2007 6:42:26 PM

Grimmy said:
Well, I was just mentioning that there are 4M chips, it's just it has the #20 in them. So don't freak out, I wasn't trying to correct ya.

Actually the 6750 is 10 bucks cheaper then the 6420 on newegg.

:lol: . o O (wonder is intel is thinking, crap our nose is bleeding, I know, we'll cut our neck, dat should do it)


It's interesting though because if you look at the user comments on Newegg there is a review for the E6300 from a guy on 11/17/07 who's had ownership for 1 day - 1 week, there really are some people out there still buying these chips.
November 28, 2007 7:11:31 PM

Heh, as long as the MB doesn't support 1333fsb, I can see perhaps getting the 6300/6320/6400/6420... but if it does support 1333fsb, thats just darn right crazy.
November 28, 2007 7:12:29 PM

ausch30 said:
It's interesting though because if you look at the user comments on Newegg there is a review for the E6300 from a guy on 11/17/07 who's had ownership for 1 day - 1 week, there really are some people out there still buying these chips.


What if you dont have a board that supports 1333fsb then you cant get the e6750, and the e6300 might be the go.
November 28, 2007 7:50:41 PM

I guess your right, I just think that it's likely people that don't know any better.
November 28, 2007 11:25:12 PM

also a good point
November 29, 2007 1:35:02 PM

Thanks for all the help and info. I guess I should have been more specific. I was inquiring about the structural differences, and if there was a structural difference, was one considered a true dual processor and the other not?
It appears that there is really not a difference other than calling the newer version (of the same product) something different.
December 15, 2008 4:27:30 AM

From a CPU standpoint, there's no difference in processing power between a dual core and a core 2 duo at the same clock speed. Only difference is dual core has less L2 cache. Here's sandra copy/paste from my two laptops, one w/ a c2d and another w/ a dual core.

Dell 1525 w/ core 2 duo and 2 gb ram:

Benchmark Results
Dhrystone ALU : 15.50GIPS
Whetstone iSSE3 : 12.32GFLOPS
Results Interpretation : Higher index values are better.

Windows Experience Index
Current Processor(s) : 4.9
Results Interpretation : Higher index values are better.

Performance vs. Speed
Dhrystone ALU : 7.77MIPS/MHz
Whetstone iSSE3 : 6.18MFLOPS/MHz
Results Interpretation : Higher index values are better.

Performance vs. Power
Processor(s) Power : 26.90W
Dhrystone ALU : 576.06MIPS/W
Whetstone iSSE3 : 458.10MFLOPS/W
Results Interpretation : Higher index values are better.

Performance Test Status
Run ID : Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz (2C, 2.00GHz,
2MB L2, 664MHz FSB)
Platform Compliance : x86
NUMA Support : No
SMP (Multi-Processor) Benchmark : Yes
Total Test Threads : 2
Multi-Core Test : Yes
Cores per Processor : 2
SMT (Multi-Threaded) Benchmark : No
Processor Affinity : P0C0T0 P0C1T0
System Timer : 14.32MHz
Number of Runs : 64000 / 640

Processor
Model : Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz
Speed : 2.00GHz
Cores per Processor : 2 Unit(s)
Type : Mobile, Dual-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size
L2 On-board Cache : 2MB, ECC, Synchronous, ATC, 8-way, 64 byte line
size, 2 threads sharing


Dell 1525 w/ dual core and 3 gb RAM


Benchmark Results
Dhrystone ALU : 15.49GIPS
Whetstone iSSE3 : 12.77GFLOPS
Results Interpretation : Higher index values are better.

Windows Experience Index
Current Processor(s) : 4.9
Results Interpretation : Higher index values are better.

Performance vs. Speed
Dhrystone ALU : 7.77MIPS/MHz
Whetstone iSSE3 : 6.40MFLOPS/MHz
Results Interpretation : Higher index values are better.

Performance vs. Power
Processor(s) Power : 26.90W
Dhrystone ALU : 575.95MIPS/W
Whetstone iSSE3 : 474.80MFLOPS/W
Results Interpretation : Higher index values are better.

Performance Test Status
Run ID : Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz (2C, 2.00GHz,
1MB L2, 664MHz FSB)
Platform Compliance : x86
NUMA Support : No
SMP (Multi-Processor) Benchmark : Yes
Total Test Threads : 2
Multi-Core Test : Yes
Cores per Processor : 2
SMT (Multi-Threaded) Benchmark : No
Processor Affinity : P0C0T0 P0C1T0
System Timer : 14.32MHz
Number of Runs : 64000 / 640

Processor
Model : Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz
Speed : 2.00GHz
Cores per Processor : 2 Unit(s)
Type : Mobile, Dual-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size
L2 On-board Cache : 1MB, ECC, Synchronous, ATC, 4-way, 64 byte line
size, 2 threads sharing
February 7, 2009 2:08:12 PM

hi how i represent my presentation for core 2 Duo vs. Dual Core
can u give me a report on it?
March 6, 2009 5:04:40 PM

Basicly intel have messed up. For example, the E5200 is Dual Core, BUT with the new 45 nm technology, like core 2 quad. Most, or many core 2 duo use 65 nm, and generate more heat and use more power.
It also has 2 MB of L2 cache and runs at 2.5Ghz. And half the price of a core 2 duo at 2.5Ghz.

SO, I don't think a core 2 duo, with twice the price is twice the better.

Besides, this clocks easy up to 3.5 - 4 Ghz ;D
May 16, 2009 5:25:00 PM

Ummm no...

He has PentiumD and Core2 right, but the Pentium Dual-Core is just a brandname for lower-end Core2 chips.
May 17, 2009 12:22:58 AM

I know, but if it already has 4+ responses by the time I get there,I consider it resurrected.
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May 17, 2009 2:19:24 AM

Quote:
C2D > PDC

3.8Ghz PDC > 2.6Ghz C2D

Too many factor's to take into account but if you have a 2.0-3.0Ghz PDC and are looking to upgrade. The C2D is the way to go. If you have a 3.6-3.8Ghz PDC i'd look for a way to get to 4Ghz and maybe call it a day.

Er... PDC is pretty much the same as a C2D. Take away some cache, VT and usually a little clock speed and you're left with a PDC. If you're looking to upgrade you'd be better to move to a C2Q for some tangible performance improvements.

Now if you're talking about a PD it's a different story.

Somebody post a necro card.

Best solution

May 17, 2009 4:22:29 AM
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May 17, 2009 4:33:04 AM

Thank you. :) 
May 17, 2009 5:39:50 AM

Bout like a 65nm Core2 @1.6-1.8Ghz
May 30, 2009 3:18:48 AM

pentium dual core and core 2 duo has the same microarchitecture. pdc e5xxx line is better than the whole core 2 duo e4xxx line.
May 30, 2009 4:20:05 AM

OMG whats with all the sudden Necro posts?! Did everyone get bored of answering all the new posts or what?!
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May 30, 2009 6:54:02 AM

You forgot the Celeron Dual Core, and technically AMD's dual cores as well.
Anonymous
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November 20, 2009 3:04:54 PM

what kind of parallel system design is used in dual core and core 2?
May 2, 2010 8:28:29 PM

Core 2 Duo is likely 15-30% faster than a Dual core at same speed. That resume all.
Core 2 Duo has better cache, better energy administration, less heat.
Core 2 Duo is a refined Dual Core.
Pentium D is history....
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May 2, 2010 8:50:36 PM

kakanutto said:
Core 2 Duo is likely 15-30% faster than a Dual core at same speed. That resume all.
Core 2 Duo has better cache, better energy administration, less heat.
Core 2 Duo is a refined Dual Core.
Pentium D is history....


Read the thread date dude...
Anonymous
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May 2, 2010 11:00:55 PM

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