5 ms·
> 2000 FLOPS per neuron. That’s only 162 GFLOPS I don't buy the overall train of thought, but math doesn't check out, unless he's using numbers I'm not aware o
by smallerfish 4y ago
> 2000 FLOPS per neuron. That’s only 162 GFLOPS
I don't buy the overall train of thought, but math doesn't check out, unless he's using numbers I'm not aware of. Commonly accepted number of neurons in the brain: 86B.
86B x 2000 = 172e+12 = 172 PFLOPs.
- mromanuk 4y agoauthor claims simultaneous neuron activation is limited by the 20W power.
- smallerfish 4y agoOh now I get it. 81M firing events per second. My bad. Where does the assumption of 20W come from?
- SemanticStrengh 4y agoThe cortex consumes 0.17 watt https://www.biorxiv.org/content/10.1101/2020.04.23.057927v1.full https://www.biorxiv.org/content/10.1101/2020.04.23.057927v1.... The 20 watt comes from less precise estimations.
- alok-g 4y agoHuman body in its entirety ranges at about 100W, give or take, higher during exercise, etc. Note: 2000 kCal per day ~= 95 Watts