According to a report by 9to5Mac, the next iPhone would sport a variant of A5x chip which would contain an ARM S5L8950X processing core, 1GB of RAM and “something entirely new” for the graphics subsystem. Also the next iPhone would be referenced as a model iPhone 5,1 or he “N41AP”.
This report somewhat matches with the hardware specs that surfaced in an iOS 6 build which was identified as an ARM S5L8950X unit.
Hardware specs that surfaced in an iOS 6 build also included an ARM S5L8950X unit verified by an application processor. This unit was also referenced in iOS 5.1 beta code alongside the S5L8945X, found in the A5X chip powering the iPad 3.
Judging from the specs, it’s most likely that the next iPhone might be marketed under A5x notation rather than A6. The performance will also most likely be the same as the of the iPad 3.
9to5mac regarding RAM and GPU:-
The S5L8950X is a step up from the S5L8940X on the previous iPhone and the S5L8945X on the ‘new’ iPad but we’re not sure what that means in terms of cores, processor speed or fab size.
The GPU chip, which will continue to be part of the SoC, is called “SGX543RC*” (the asterisk is another sensitive number that could identify people working on the device). This GPU technically does not exist yet and we don’t have specs.
If the above speculations are true, then it might not take Apple much time in development which might result in earlier release of the next iPhone.
Honestly though, if iPhone is to get the modified dual-core processor and somewhat improved GPU upgrade, it might not just be enough to overcome it’s arch rival’s smartphone Samsung Galaxy S3. What do you think ?.