I have decided that I would not write on this subject until I have received a total of 25 questions on this subject.

Here are a few questions from the list:

Questions:

What is the difference between Dual Core and Core 2 Duo?
Which one is recommended for SQL Server: Core 2 Duo or Dual Core?
Can I upgrade my Dual Core to Core 2 Duo?
If Dual Core has 2 CPUs, how many CPUs does Core 2 Duo have?
Is it true that Core 2 Duo and Dual Core meant the same thing?

Well, let us see the answer. Optimistically, I would be directing everybody to this blog post if I receive a question of the same kind sometime in the future.

To verify the information that I provide, visit Intel’s site. For additional information regarding the subject, visit Wikipedia.

My Answer:

Any computer that has two CPUs or two “cores“ is known as Dual Core.
Core Duo is a brand name of Intel for Dual Core.
Core 2 Duo is simply a higher version of Core Duo. (e.g. for Pentium brand, it`s like Pentium I, Pentium II, etc.)

The computer I am using now has Core 2 Duo. Intel has launched a new brand, which they call i3, i5, and i7.  Here, the numbers are not related to the number of cores; rather, they show the range of the CPU. I3 is of low range and i7 is of high range.

Feel free to add more details by adding valuable comments here. And if you still want to ask why I created this blog post, well, I mentioned that I was waiting for 25 questions threshold to hit, before I write about this subject which I didn`t really plan to write about.

Reference: Pinal Dave (http://blog.SQLAuthority.com)