'Neural network' spotted deep inside Samsung's Galaxy S7 silicon brain

Hot Chips Samsung has revealed the blueprints to its mystery M1 processor cores at the heart of its S7 and S7 Edge smartphones. International versions of the top-end Android mobiles, which went on sale in March, sport a 14nm FinFET Exynos 8890 system-on-chip that has four standard 1.6GHz ARM Cortex-A53 cores and four M1 cores running at 2.3 to 2.6GHz. Only two M1 cores are allowed to kick it up to the maximum frequency at any one time to avoid draining batteries and overheating pockets. The M1, codenamed Mongoose, was designed from scratch in three years by a team in the US, and it runs 32-bit and 64-bit ARMv8-A code. In benchmarks, the Exynos 8890 SoC is behind Apple's iPhone 6S A9 chip in terms of single-core performance, but pushes ahead in multi-core tests.