3 ms·
Wow. Good to know that entire lifetime energy consumption is 50 MWh. At $0.1/KWh, you’re looking at $5000 in equivalent electric energy consumption over entire
by nojvek 6y ago
Wow. Good to know that entire lifetime energy consumption is 50 MWh. At $0.1/KWh, you’re looking at $5000 in equivalent electric energy consumption over entire lifetime of a human being.
The brain uses 20W of power. For a life time of ~80 years, that is 14MWh of energy usage. Suppose we say the brain trains for the first 25 years then that is 4.38 MWh. Equivalent electric energy consumption is only at $438.
So yeah, the brain is quite efficient both in hardware and software.
- pontus 6y agoThat's still really surprising I think. I would have imagined that it would have been off by many orders of magnitude. The fact that these models are within a factor of 3-10 of the human consumption is pretty impressive. That being said, these models are training only for very specific tasks whereas obviously the human brain is far more sophisticated in terms of its capabilities.
- littlestymaar 6y agoBear in mind that only a tiny fraction of the energy spent by Sedol's brain during his whole life was dedicated to learning Go. Even while playing Go, a human neural system spends a big part of its energy doing mundane stuff like moving your hand, standing up, deciphering the inputs coming from the eyes and every other sensitive body parts and subconsciously processing it (my back hurts I need to change posture, my opponent smells well, the light in the room is too bright, etc.). Interestingly enough, doing most of these things is also a big challenge for IA today.