Those time periods also assume that you're just blindly cracking every possible 8-character combination, but you don't have to do that. Running your cracker aga

Those time periods also assume that you're just blindly cracking every possible 8-character combination, but you don't have to do that. Running your cracker against a password list like rockyou will probably get you 90%+ of passwords cracked in less than one second per hash with that same hardware.