4 ms·
The brain has other differences that are probably a major influences on it's efficiency; 1) It's incredibly parallel, few operations happen linearly. Even mode
by zaarn 8y ago
The brain has other differences that are probably a major influences on it's efficiency;
1) It's incredibly parallel, few operations happen linearly. Even modern GPUs don't really match that.
2) It doesn't run everything all the time. Parts of the brain not in use are shut down. Modern computers do this to some extend but CPU cores don't switch off parts of the ALU not in use. The brain has much better energy saving options, only 10-30% of the brain are active at a given time.
- rodiger 8y agoBuilding on 2- this is likely not a result of saving energy but rather hyper-specialization in specific regions of the brain. Like if modern CPUs had 10-20 cores, each tuned to handle a specific task. The result is energy efficiency, but in contrast to current energy saving options, the brain can't simply "speed up" and use more power and activate more areas of the brain.
- skohan 8y ago> It's incredibly parallel, few operations happen linearly. Even modern GPUs don't really match that. Modern GPUs aren't even close: neither in terms of degree or in kind. A GPU does a lot of linear operations in parallel, but in the brain all the "compute units" are interacting with each-other in real time.