If you have a random 80 bit password, yes. But passwords are the farthest thing from random. Even high entropy passwords from a password generator will only use

If you have a random 80 bit password, yes. But passwords are the farthest thing from random. Even high entropy passwords from a password generator will only use the printable ASCII character set, which reduces the number of possible values of a byte from 256 to 95. An 80 bit password from a conventional random password generator would have an effective entropy of (80/8)*log2(95) ~ 66 bits, which would take about 30 GPU years.