Hardware is the same across the board. PC's have equally good hardware.. Literally only the aluminium body is still unique to apple but the internal components are the same as any other OEM.

I work in IT, so I've seen alot of hardware from many OEMs including Apple.

I've had 15+ year old PCs running XP on the same box and still being used daily to run a CNC machine... They can't be replaced because the software was never updated by the developer to run on anything else. But the hardware is rock solid.