At present, Samsung's mobile chipsets make use of stock ARM cores. Samsung's new Exynos 7 Octa SoC makes use of the ARM Cortex A57 high-performance 64-bit cores. However, that may not be the case with the Exynos 8 SoC.

Reports suggest that Samsung will design its own ARM based 64-bit cores. The report says that Samsung's LSI division has been working on this custom ARM architecture for 4 years now. Samsung hopes to match the per-core performance of Apple's powerful A-series mobile chipsets.

As we all know, Apple's custom cores have higher performance than the best performing ARM Cortex cores. Read the original report by following the source link.