1 billion laptops can simulate a rats brain power. Human brain, 200 times more computing power needed.
reverse-engineering a small piece of rat brains. This small piece is called a cortical column, and it's made up of an intricate network of some 10,000 individual neurons, each one of which requires about as much computer power as your average laptop to model.
Put 100,000 of these columns together and you've got a model of a fully-functional rat brain.
human looking for a new brain, you're going to need something a little more complicated. Think 100,000 individual neurons per cortical column and maybe two million columns
Human Brain Project would build computerized mind by 2024 | DVICE