Well, the advantage of the a10-7850k is the quad core design, the advantage of the Pentium is the socket it sits in, if, at a later time he decides to get into PC gaming even more he can REALLY upgrade to a very powerful CPU, and A10-7850k is the most powerful APU right now, and I doubt that will change very much
I loathe to ever recommend a dual core anything, but for future upgradability, uh.... G3258
And get the 3258, cause it CAN be overclocked and its still damn cheap