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Difference Between Dual Core and Core 2 Duo

intel_dual_coreDual Core vs Core 2 Duo
Dual core processors are those that contain 2 cores in a single silicon chip while Core 2 Duo is the name given by Intel to its second batch of dual core processors.

The processor wars have hit a major speed bump as clock speeds become harder and harder to push upwards. Because the number of transistors in a single chip continues to follow its upward trend, processor manufacturers like Intel and AMD have decided to go a different route in increasing the performance of their products, adding more cores into a single chip that leads to a performance boost if the OS supports it. Two or more cores can greatly aid in multi-tasking where each core can work independently of each other. All processors that have 2 cores in them are collectively called as dual core processors regardless of which manufacturer it came from, while those that have 4 processors in a single chip are called quad core.

Initially, Intel called their dual core processors as Core Duo, a very obvious reference to two cores, while AMD called theirs the X2. Intel’s dual core processors were simply 2 Pentium 3 processors that were fabricated in a single chip. As they refined their product more, they decided to differentiate their second set of processors from the Core Duo and decided to call it Core 2 Duo.

Basically, the difference between dual core processors and the Core 2 Duo processors is just in the semantics as Core 2 Duo is simply a name given to a more recent family of dual core processors. If we translate this to the single core processors, we can say that Core Duo is Pentium 1 while Core 2 Duo is Pentium 2, while AMD has their own processors with different names; but all these are still single core processors. We can therefore say that Core 2 Duo is simply a subset of all the dual core processors that are out in the market today.

Summary:
1. Dual core is the generic name given to processors that have 2 cores on the same chip
2. Core 2 Duo is the second line of dual core processors from Intel
3. Other dual core processors aside from Core 2 Duo are the Core Duo from Intel and the X2 series from AMD
4. All Core 2 Duo processors are dual core but not all dual core processors are Core 2 Duo


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55 Comments

  1. hi
    fantastic

    its the end to my search

    thanks a lot

  2. thanks too man for ur information.

    thanks

    alot

  3. That brought the useful conclusive information :)
    thanks 4 that

  4. thanks for clearing the doubts about dual core and core 2 duo cpu

  5. Very clear and neat summary………..! Thanks a lot…….!

  6. its good but enogh to thorolly understand the basic differences clearly it is difficult for students

  7. good n clear summary, thanks for clearing doubts……

  8. Nice explaination. Thanks

  9. Hey thank u !!!!

  10. Really, this is the end of m search
    and that was very detailed in a few words thanks a lot

  11. It’s really clear and useful information in few words.

    Thank u very much.

  12. thanx 4 giving me such clear and useful information

  13. it is really useful information

  14. nice… thanks for the review
    it made me a lot easier to understand between the two.
    thankyou ..

  15. great piece of info, wel portrated

  16. Great! Thanks for the information..really useful.

  17. Thanks a Lot for ur nice and clear information

  18. Hey, thanks a lot, cleared up some things.

  19. This isnt the required information. There is too much difference betwwen the two on technical grounds. I am sorry because I dont know about the details but I am sure that there is a difference regarding the cache memmory. Hope so, somebody would come up with a correct answer.

  20. hi.

    realy described the difference in very easy and uderstandable way.
    thank for all those who works for the huminity……….

    thank u

  21. Thanks for information

  22. I expect d answer in mechanism format I mean Hw Data Input Given to the Processor and Hw it Deals nd Produce d Output….
    By d way Thanks….

  23. Thanks for providing this site for helping us in differentiating between almost everything.
    I will also suggest my friends and colleagues for this site for any help in differencing.

  24. Thanks for making such a good site…It helped me to find difference between two terms..

  25. You have made it simple….. Greate job … Cheers buddy!

  26. Thnx A Lot to All

    this info is really Precious .

  27. Thanks man for this very interesting article for core 2 duo and dual core ;)

  28. wow !!
    i really got a perfect idea about this matter

  29. thanks helped me a lot!!

  30. Thank You
    i am failed in interview because of this question

  31. Hi,
    This is such an usefull information. But I didn’t get u the 4th point which u mentioned in summary. Please clarify and give me related site.

    Thanks to All
    Subbu PSRK

    • What I’ve understood from what he said, he means that a Core 2 Duo can be a Dual Core as the Core 2 Duo has 2 (physical) processors and virtual processors also inside the same chip, whereas a Dual Core has only 2 physical processors. Thus, a Dual Core cannot be a Core 2 Duo!
      Correct me if I’m wrong!

  32. Excellent information. Now I got a good differentiation between dual core and core 2 duo
    Thanks a lot

  33. I think what we as purchasers need to know is the core duo is a 32 bit processor and the core 2 duo is a 64 bit processor other than that I think a 1.83 chip is pretty much a 1.83 chip as far as speed of processing goes if they both are confined to a 32 bit operating system. If the core 2 duo has the 64 bit operating system and a program that is capable of operating at 64 bit then the core 2 duo is going to have a significant speed advantage.

  34. Please friends help me
    which one is best
    core2due E6400 or dual core E6300

  35. Thank you for sweet & short Explanation

  36. Thanks a lot…

  37. Thanks a lot!!!!

  38. i like core 2 duo is more better than duel core.

  39. amazing summery.mostly person can not understand the difference of these two similar machine.

  40. great end of my search th anks…………………….. much

    can u elaborate on core 2 duo and intel i3-7 technology diff..

    many sites give false info but here its all correct i searched many place but here all perfect

  41. I love the way you explain the difference. Kudos to this guy!

  42. Thanks for the concise explanation between the two.

  43. Thanks allt..very informative!

  44. Very well described. thanks a ton :-)

  45. Core 2 thanks for this.

  46. Thanx for the info… i just started to study all these difference… Its very useful to me and not only to me—-to all of them

  47. Nice Explanation!
    I had to struggle a bit before I visited this page for the answer.

  48. nice comparison. all dounts are cleared. thanks a lot
    my best wishes.

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