^
No chance, Apple are one of the biggest fabless semiconductor companies around these days
Those rumours are probably getting the S4 mixed up with the MDM9615 (28nm modem that's also used on the S4 die). http://www.slashgear.com/qualcomm-readying-4g-lte-chips-for-next-iphone-15234169/
A 32nm dual core A15/SGX544MP2 design is faster and cheaper than the current 45nm A5X and they've always been first to use new architecture.
It would be more surprising for them to use a quad core A9, which is still pointless and wasteful in a small handheld device.
No chance, Apple are one of the biggest fabless semiconductor companies around these days

Those rumours are probably getting the S4 mixed up with the MDM9615 (28nm modem that's also used on the S4 die). http://www.slashgear.com/qualcomm-readying-4g-lte-chips-for-next-iphone-15234169/
A 32nm dual core A15/SGX544MP2 design is faster and cheaper than the current 45nm A5X and they've always been first to use new architecture.
It would be more surprising for them to use a quad core A9, which is still pointless and wasteful in a small handheld device.