Whats the difference between the Intel Dual-Core(brand name) processor and the Core 2 Duo? It seems like clock speed is the only difference, but I want to make sure that is the case. It seems like anything over 2.6GHz is Core 2 Duo, and anything under 2.6GHz gets the label Dual-Core.


5 Answers 5



The Intel Dual Core is its own product line of Intel processors.


The Intel Core 2 is also another product line of Intel processors.

The pentium dual-core processor is a one of Intel's value or basic processors available. That is why you save so much going with that processor. The Core 2 is the more powerful desktop processor from Intel, hence why you pay more for it.

Here is a review comparing performance between the two: (This is well put together)


And a forum discussion about the differences:


I assume you mean the difference like on this inspiron 537 between the two middle models:


If you notice next to the processor names is the intel e5200 and the intel e7500. These are the processor numbers you can look up on the internet for futher specifications and reviews.

The E5200 is listed under the Pentium Processor for Desktop on intel's website:


The E7500 is listed under the Core 2 Duo Desktop Processor


  • The processor review page is a little old, but it gives a good perspective on the differences.
    – Troggy
    Commented Aug 6, 2009 at 17:39

Dual core refers to a processor that contains two separate processing cores. Core 2 Duo is a brand name of a processor which is also in a dual core configuration. This is the short answer. The brand name and the descriptive name match up precisely in this one case.

  • This answer would indicate that it's just about naming, but other answers indicate that there are performance differences as well, with Core 2 Duo being the faster/better/more expensive one. Commented Nov 12, 2009 at 7:45

The Core 2 Duo has two cores inside a single physical package. The Core 2 Quad has four cores in its package. In applications that utilize multithreading, such as Photoshop or video editing, you will see a tremendous improvement over a Core 2 Duo at the same clock speed. In single-threaded applications, there will be less of an improvement.

from http://wiki.answers.com/Q/What_is_the_difference_between_an_Intel_Core_2_Duo_and_an_Intel_Core_2_Quad


dual core is 2 cpu in a package

2 cpu's in a die = 2 cpu's made together 2 cpu's in package = 2 cpu's on small board or linked in some way

core 2 duo = brand name of certain kind of cpu like pentium or amd atholon

  • 1
    He asked about Core 2 Duo and Dual-Core, not about Core 2 Quad.
    – ianix
    Commented Aug 6, 2009 at 15:57
  • Sorry its mistake ;)
    – joe
    Commented Aug 6, 2009 at 16:00
  • If I got to Dell, I can get and Intel Dual-Core, Intel Core 2 Duo and Intel Core 2 Quad. I have the Core 2 Quad at work, which is great, but I don't need it at home. I can save big money going with the Intel Dual-Core, I'd just like to know if its the same architecture and the Core 2 Duo. Commented Aug 6, 2009 at 16:04
  • I believe he is asking about the two intel processor products and why one is cheaper then the other.
    – Troggy
    Commented Aug 6, 2009 at 16:23
  • is it the question like that ?
    – joe
    Commented Aug 6, 2009 at 16:25

DUAL PROCESSORS are those contain cores in a single silicon chip It have cores inside a single physical package All Pentium D processors are Dual core

CORE 2 DUO is the name given by Intel to its second batch of Dual Core Processor It have 4 Cores in its package All Dual Core Processors are Core 2 Duo Processors

  • This is a 7 year old post that has an answer already. Please see here for moe information on how to write a good answer.
    – TheKB
    Commented May 30, 2016 at 17:14
  • 1
    This duplicates another answer and adds no new content. Please don't post an answer unless you actually have something new to contribute.
    – DavidPostill
    Commented May 30, 2016 at 17:29

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.

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