It isn't exactly a revelation that Apple might place such a chip in its iPhone 5, since we heard rumors that Cupertino's engineers are testing the next generation A6 with four processor cores at the TSMC foundry earlier this year. Actually we last heard that Samsung will be producing the A6, and now the sources confirm that this quad-core A6 is none other, but modified quad-core Exynos 4 series, which is already running in the international version of the Samsung Galaxy S III. This means a 32nm HKMG package made in Samsung's Austin, Texas factory - a pretty powerful combination.
Now back to Qualcomm - its quad-core APQ8064A is a monster of a chipset, since it integrates multimode LTE radio, and is built on the 28nm process too. Besides, those will come with the most powerful graphics processor - Adreno 320 - that Qualcomm has in its quiver, so phones with quad-core Snapdragons should be beasts as well, with HTC One XXL already rumored to be one of them.