Upgrading laptop processor
It is very rare that a laptop processor can be upgraded. The CPU and the cooling arrangement tends to be permanently fixed to the mainboard. Even if the part is replaceable getting into it can be difficult, requiring you strip down the whole machine, and you will have difficulty finding the new CPU - you can't just slap a standard desktop CPU in there and I'm not aware of any general suppliers that sell mobile CPUs on their own in this way.