According to insider sources quoted in a fresh report, the Samsung Galaxy A7 will be based on the Exynos 5433 chip, a mobile SoC that features an octa-core 64-bit CPU. The Exynos 5433 can also be found in one version of the Galaxy Note 4.
http://www.notebookcheck.net/Samsung-Galaxy-A7-metal-phablet-rumored-to-come-with-same-chip-as-the-Note-4.132295.0.html