AMD a8.....easily AMD GPU perform far better than intel's and a8 comes with radeon R5 graphics which is fine for running AAA title games....like GTA 5 ,cod advanced warfare etc. ..at low settings....
On the other hand...even and Intel hd5500 which is considered as an good Intel GPU ....can' t...
It depends on your usage.....If you are an gamer you would probably choose AMD because AMD integrated graphic cards are far better than intel's,,,,,, and also a8 outmatches i3...cause it has 4 cores and i3 has only one
MY OPINION AMD