exynos 7870Samsung Exynos 7870 Octa is a mobile SoC announced by Samsung in 2016. It is manufactured using a 14nm process technology.Inside the new Exynos 7 Octa 7870, we find a total of eht Cortex-A53 cores, clocked at up to 1.7Ghz, along with a Mali-T830 GPU.