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Re:Advances in semiconductors are feeding the AI boom by marcosdumay on Thursday March 28, 2024 @12:34PM (#39853919)
On the power usage, the difference is that those synapses are almost always in stand-by. The equivalent would be a CMOS circuit with a clock of minutes.

On the complexity, AFAIK a synapse is way more complex than a transistor. Larger too, if you include its share of the neuron's volume. And yes, the count difference is due to the 3D packing.

Re:Advances in semiconductors are feeding the AI boom by sroussey on Thursday March 28, 2024 @01:48PM (#39855028)
The brain’s 3d packing is via folding. Maybe something similar would be better than just stacking.