In an interesting turn of reveal-events, Samsung Galaxy Note 4’s Exynos 5433 proves to be making its bearer the first 64-bit Android flagship. It is still uncertain why would Samsung not cash on such a high-trend detail in the unveiling of its mass loved phablet, latest source code confirms that the SoC is actually a 64-bit A57/A53. While Exynos 5433 continued with the naming scheme of previous chipsets of the family, it is not a Cortex A15/A7.
64-bit Exynos 5433 of Note 4:
Unlike previously assumed, Samsung Galaxy Note 4 features the powerful 5433 taking advantage of the 64-bit architecture. The device comes out of the box with Android 4.4 KitKat, hence there was no need as yet to take advantage of the said architecture. That is the reason why it has neither been advertised nor is it actually using the 64-bit architecture. Samsung Galaxy Note 4 will run on the regular 32-bit mode, however, the capability of Exynos puts the device ahead of other high-end smartphones as it will lead the game once Android L is released.