The problem is this base clock speed is given by the CPU manufacturer not the laptop maker. And Intel wouldn't know what kind of laptop it's getting crammed into. So careful definitions don't really help. Desktops are already big clunky things that have to be kept plugged in, I can trust them a lot more to deliver the CPU's promised performance. Whereas laptops are notoriously making compromises because customers tend to be very unrealistic about noise, battery life, etc.