Samsung Galaxy S7: Exynos 8890 octa-core/Snapdragon 820 quad-core CPU, Adreno 530/Mali-T880 MP12 GPU, 4GB RAM
iPhone 6S: Apple A9 64-bit dual-core CPU, 2GB RAM
The Galaxy S7 is powered by Samsung's own Exynos 8890 processor in most territories, including here in the UK. Our US cousins get the more general, off-the-shelf (but still highly capable) Snapdragon 820.
Whichever chip you get, it will offer radically better performance than the Galaxy S6. Samsung claims that both will offer 30% better performance than the Galaxy S6's Exynos 7420 64-bit octa-core CPU. The phone's also got a memory upgrade, with Samsung having loaded the Galaxy S7 with a staggering 4GB of RAM.
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