the latest Intergrated Intel and AMD CPU cost a penny but that basically combining the two together but gaming is a no go for the lastest game.
Tho GPU's aren't used just for gaming, but as well for Heavy Graphical Programs, such as Unity, UDK, Maya(maybe) etc. And a CPU and a good GPU would cost you around 400 dollars, being 200 dollars each. A Core i5 and a HD Radeon 5750 wouldn't be that bad.
An besides if he does get a good GPU, you will be able to use it for some latest games.
Of Course That's Just My Opinion, I Could Be Wrong







