Intel Core 2 Duo Vs Intel Dual Core Processor : A Comparative Study

By soumitra, Gaea News Network
Tuesday, September 1, 2009

intel-processorsI donno what Intel thinks before churning out such an idiot sounding name with both a numerical 2 and a Duo in its processors name but surely their processors are selling like hot cakes. There were some days when there were two family of processors from Intel : Celeron and Pentium. And people knew that Celeron Processors are crap and Pentium Processors are good. But with this naming convention of Intel Core 2 Duo and Intel Core Duo a.k.a. Intel Dual Core, they sound nearly the same and I know some people who even think that their performances are also same. But don’t worry too much, here we have come out with a simple comparison that will clear all your confusions.

1. Architecture


Core 2 Duo : Uses an architecture ton create two cores on a single die or in other words there is two chips in one package.
Dual Core : It is the first Double Core Technology from Intel. It uses a less sophisticated mechanism but basically it uses two cores in a single die.
Conclusion : Dual Core is an older architecture and Core 2 Duo is an improvement over that architecture making it more efficient.

2. Performance

Core 2 Duo : It has better performance than Dual Core Processors in almost all Benchmarking tests.
Dual Core : It is better performer than all previous processors in Pentium Series but no better than Core 2 Duo.
Conclusion : Core 2 Duo is a clear winner here.

3. Thermal Output

Core 2 Duo : Core 2 Duo Processors are significantly cooler than all other processors.
Dual Core : Remains cool but not like Core 2 Duo.
Conclusion : Core 2 Duo wins here.

4. Overclocking

Core 2 Duo : They can be easily overclocked up to 4.0 GHz with suitable coolers. Even a overclocking at 6.0GHz was made possible with Liquid Nitrogen cooling.
Dual Core : Can be overclocked upto 20-30% of its specified clock speed without much problem.
Conclusion : Core 2 Duo has better overclockability.

5. Power Consumption

Core 2 Duo : Very good power efficient processor with max TDP of 65Watts.
Dual Core : Extremely power efficient with max TDP of 15Watts.
Conclusion : Dual Core has lower power consumption.

6. Clock Speeds

Core 2 Duo : Greater clock speeds of upto 3.33 GHz is available now. (Model No. E8600)
Dual Core : Not so high clock speeds available. Max 2.33 GHz is available for model no. T2700.
Conclusion : Core 2 Duo models are available with greater clock speeds.

7. Price

Core 2 Duo : These processors are priced from $120 to $270 for different versions of processors.
Dual Core : These processors are priced from $40 to $140 for different versions of processors.
Conclusion : Dual Core Processors are available at really low prices now.

8. Cache

Core 2 Duo : You can get a max of 6MB L2 cache for Core 2 Duo. (E.G. Model No. E8300, E8400, E8500, E8600, …)
Dual Core : Max 2MB L2 cache is available.
Conclusion : Core 2 Duo models are available with greater clock speeds.

9. Front Side Bus Speed

Core 2 Duo : It is available with front side bus speeds of upto 1333 MHz. (E.G. Model No. E8300, E8400, E8500, E8600, …)
Dual Core : Max of 667 MHz speed is available.
Conclusion : Greater FSB Speed is available with Core 2 Duo.

10. Overall

Core 2 Duo : It is a better processor with higher price tag.
Dual Core : It is not as good as Core 2 Duo but is available at a cheaper price tag.
Conclusion : If you are looking for a budget processor, go for Dual Core otherwise Core 2 Duo is a better choice.


January 16, 2011: 10:34 am


January 3, 2011: 4:08 am

thnxxx !!! nce article

December 24, 2010: 10:59 pm

Nice info.. thank you very much

December 7, 2010: 1:35 am

thanks dude, for this nice review.. itzz simple and informative…

November 30, 2010: 6:01 am

dude?., your amazing it’s an excellent and clear information about.,
Keep up the good works.,
Many Thanks to YOU

October 28, 2010: 7:28 pm

This author is horrible and biased, offering nothing both in the literary and news-reporting sense.

October 15, 2010: 6:06 am

Very informative, thanks. Got it down to the nitty gritty with simple, lay man’s terms that are much easier to understand. Thanks very kindly for your time.

August 19, 2010: 5:12 am

Hey Nice Information in a precise and crispy manner… people can easily understand easily

Thank you

August 9, 2010: 4:14 am

it helps me a lot,thanks!

July 8, 2010: 8:31 pm

Thank you i am buy a new pc intel core 2 duo 2GB ram 500 GB HDD Video card Nvidia Geforce 9800 gt

July 1, 2010: 4:46 am

Very good article. What do you think of the Dual Core E6500 2.93? Is it better than some of the core2duo’s?

May 17, 2010: 3:24 am

Nice article, clear and well explained. Keep it up!

April 7, 2010: 12:31 am

Thanks for the information…
It pretty clear for me now….
Really Good Stuff….

April 5, 2010: 12:41 am

thanks for nice information, but i have one request to show us the speeds for core 2 duo and duo core prossesors.

bharat patel
March 3, 2010: 1:20 am

Thanks a lot for best comment…………

January 30, 2010: 1:24 am

Thanks! Simple yet useful, this has helped me decide on what i will go for.
Core 2 Duo.

December 28, 2009: 11:10 am

Really well differentiated between the 2 processors. I’m going 4 the Core 2 Duo. Thanks a lot author 4 ur kind n free help.

Intel Core 2 Duo
November 15, 2009: 12:48 am

Well I like Intel Core 2 Duo to better when you are havy gamer want watching movie etc thank you for the info

November 11, 2009: 6:55 pm

As a follow up, I haven’t completed my analysis using datasheets but my feeling at this point is that the new Wolfdale E6300 (as opposed to the old Allendale E6300) is somewhere between the Core Duo and Core 2 Duo lines. From what I’ve seen so far it looks like a Core 2 Duo but without SSE4 support like the other Wolfdale processors tout. Odd…

November 11, 2009: 9:13 am

@ Scott

Thanks again for your knowledgeable response. Visitors like you are an asset to us. Please also check our other articles like Difference between AMD and Intel Processors or DDR2 Vs DDR3 etc. if you like.


November 9, 2009: 6:26 pm


Thank you for your response but perhaps you too should check your facts as Intel DOES refer to it as a “Pentium Dual Core” processor right in its datasheet as found on Intel’s site:

It seems to me that Intel marketing has simply stopped using the term “Dual Core” in favor of the “good old Pentium Brand” as you put it. Perhaps they did this to avoid confusion or further distance them from the “Core 2 Duo” line but that would be pure speculation on my part.

November 6, 2009: 9:18 am

@ Scott

Thank you for commenting but get your facts straight. The Wolfdale E6300 is NOT a Core Duo (or Dual Core) Brand Processor from Intel though it has 2 Cores in it. It is from the good old Pentium Brand though this Processor is launched quite recently. You can verify this from link provided here.


November 5, 2009: 4:34 pm

This all sounds good — except that I don’t trust any of it because the processor that I am looking seems to contradict some of the statements.

The Wolfdale E6300 is a “Dual Core” yet the clock speed is 2.8GHz, it supports a 1066MHz FSB, and the Max TDP is 65W. Has Intel mislabeled this processor (and the Wolfdale E6500 which is 2.93GHz) or is the information here wrong?

dean miller
November 5, 2009: 1:32 am

thanks buddy, for this nice review.. itzz simple and informative… and also easy to read. could you please suggest me any online store, which are specialized in hardrive … CPU selling?

September 7, 2009: 1:15 am

@ Jatin Roy

Hey, I myself didn’t know that I ‘copy pasted’ the materials! If you know any source that I ‘copy pasted’ from you can provide them here.

BTW : I referred this address for information about Core 2 Duo Processors.
And this address for Core Duo Processors.


Jatin Roy
September 4, 2009: 5:31 am

The author’s report is itself a crap and not that of Intel. This is a copy pasted material, and people should go for the original source.. Please provide the original source. I found the blog a bogus one with almost all are copy pasted material…Please make the administrator come forward..

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