iPhone 7 vs. iPhone 6s Speed Test Video Shows How The A10 Fusion Chip Compares To The A9 Processor In Performance And Speed [Video] A new speed test pits the iPhone 7 against its predecessor, the iPhone 6s. The results show how Apple's new quad-core A10 Fusion chip inside the iPhone 7 compares to the dual-core A9 processor found in the iPhone 6s. by James Geddes