New to this, buying new pc, need opinions.

[Zee530]

Yes, you could keep the GPU but only expect about 720p gameplay in most games, you could opt for a lower priced processor if you're on a tight budget as it is overkill for both those games, but if you plan to play more intensive games in future you should stick to that processor as it's the recommended, if not a haswell i3 should also get the job done, maybe someone can recommend you one.