Originally Posted by jinwons
I don't think Exynos has integrated 3G radio chips like Qualcomm snapdragons. Tegra2, OMAP4 don't have it either as far as I know. So they can be used for GSM and CDMA phones.
I think it's either Exynos supply issue or Samsung found it more power efficient with dual core snapdragon 8X60 AP and LTE radio.
Only few companies have licensing agreements to develop CDMA and GSM chipsets.