Quad Core processors have more power than the core / dual core processors , thus making it faster and for more capable CPU (processor ) hungry applications / programs .
A multi- core chip can execute multiple instructions simultaneously.
Dual Cores have two cores and four cores have four . All cores are on the same chip however. So, share the same memory , and the data path to the motherboard .
So a quad-core chip may be able to execute instructions four times faster , but that does not mean they can receive instructions from RAM four times faster .
In addition , the faster the CPU is , the hotter it gets. The fact that the CPU is a quad core does not mean that is configured to run on the same GHz .
Consider a manufacturer who wants to sell a 4- gigahertz chip , but the core is melting . You could sell a quad-core chip with each core set to 1 or 2 gigahertz and get better performance , but still be running much slower each core . Therefore, the chip no longer melts.
The software has to be rewritten to take full advantage of multi -core processors . The operating system can provide a small increase speed automatic , but will not see a 4-fold increase in performance just by switching to a quad core .
Even if the software is rewritten may not be 2X , 4X or faster because now the program can have additional instructions added for the sake of finding out which center will have access to every part of the program .
Hope that helps !
~ Catscratch [ or George : p ]
Quad core uses 4 cores so that means it can process more data at once. While it is 2 times more potent than even more .
As a quad-core technology is new , still some dual core processors can beat four cores , but Xperia S and Galaxy S3 case, the S3 beats Gaalxy Xperia by much.