Laptops of this era are a hit-or-miss when it comes to CPU upgradability, so if they have a socketed CPU, it often only allows a narrow degree of upgrade, mainly due to their heatsinks, which can’t be upgraded.
However, the general rule of thumb in my books are:[br]
-ALL MacBooks don’t have easily upgradable CPUs, as they are soldered
-Most windows laptops (circa 2004-2011) that that screens bigger that 13” have socketed chips, and can be upgraded
- Most windows netbooks (those really tiny laptops) have soldered chips, and can’t be upgraded
- Most windows laptops (2013-present) have soldered CPUs, besides a few Desktop Replacement Machines (aka huge laptops with desktop CPUs)