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Another interesting angle is power consumption. The brain consumes about 20W so that’s ~200pW/neuron. The GPU is 4 orders of magnitude worse at ~2uW/neuron.

The brain also does much more than a GPU. I’m not sure what percentage of the brain could be considered devoted to equivalent computation but is also interesting to think about. I’ve seen that the brains memory is equivalent to ~2PB. The power of a 12TB hard drive is ~6W. So current tech has a long way to go if it’s ever going to get close to the brain, 2PB storage is about 1kW alone.

That’s pretty impressive for a bunch of goo that resulted from a random process.

Makes me think we are barking up the wrong tree with silicon based computing.



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