Yes 2x of A16. Then you can do some research A16NPU -> A15 NPU -> M2 NPU -> M3 NPU. I also read about it and I couldn't find any evidence that the M3 got the NPU of the A17 pro. So according data it looks like it uses the NPU of A15/M2. A16 got the same, is a bit faster because it got higher clock than A15.
TOPS is all a bit airy fairy pixie dust make believe, "customers don't need concrete facts" mumbo jumbo.
Give it a year or two and I'm sure someone will create some benchmarking tools to give us something with a bit more substance than a "theoretical" measure like this.
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