There was some tension between consumers and Samsung after it was revealed that the Galaxy S4 with Exynos 5 Octa processor it will not be an option in all countries. In Spain and the United States, among others, we will only see the version with the Qualcomm Snapdragon 600 processor. Users believe that there is difference in performance between the two processors and the two models, however, the Co-President of the Korean company, JK Shin, has said that users won't notice the difference.
The statements may not be shocking when viewed in isolation, but they are particularly shocking after Samsung's publicity campaign of its new chip, which is made with a license from ARM big.LITTLE architecture. Using this, you have two quad-core games that would apparently add up to 8. At first, there was a lot of expectation given that the definition they gave in their presentation seemed to imply that it was a 8 core processor who worked at the same time. This is not the case, since they take turns depending on the type of task that is being carried out.

Qualcomm he criticized the way to explain this operation but curiously later it has put the engine to a good part of the units of the flagship phone of the Koreans. Both processors have antagonized in different presentations and both users and the press have understood that would offer different benefits. The overall impression is that Samsung's proprietary processor is more efficient and also save battery consumption increasing autonomy.
Hence, now Shin's statements in an interview with CNET in New York they can produce certain scratches. This has justified the decision to use two types of chips to be able to ensure manufacturing and distribution of terminals worldwide. The expected demand is brutal And it seems natural that these precautions are taken as is done in many other products and their components, such as Apple with its screens for iPad and iPhone.
Source: CNET.