Well, I wouldn't say AMD is 'better' or 'worse'. AMD is an alternative that some love or hate. I'm an Intel person mostly because a fair deal of the games and programs just code for the Intel Chipset. The AMD chipset has its quirks when it goes against the Intel Chipset programming that will require the occasional software patch to avoid the quirks.
Just understand that Intel Chips have the brute force method down to a science and AMD has a different means to do that method, which is why they have 'PR' ratings, Performance Rating equivalents, because they implement handling certain 'rudimentary' parts as fast as the brute force method, but sometimes those implementations don't compensate for other brute force methods that the Intel Chips excel at.
Also AMDs will tend to run a bit hotter than Intel on some processes, so you want to be sure you have a good cooling system and expect to feel a bit more heat from AMD based systems.
