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The S8's 5.8-inch right-angle \/ 5.6-inch rounded hyperboloid SuperAMOLED screen;
The S7 has a 5.1-inch SuperAMOLED screen.
The S8 has a 2.35GHz CPU and a 1.9GHz octa-core processor. The S7 has a 2.15GHz 1.6GHz CPU and a quad-core processor. The S8 has 64GB of ROM memory; The S7 has 32GB of ROM memory.