Fortitude,
The A10-7850K offers about the same gaming performance that you would get combining an Athlon 860K with a DDR3 edition R7 240/250. It can offer reasonable performance (FPS) but at low visual quality settings (best suited to 720P resolution, and modest texture quality settings with no post processing).
The GPU performance of an APU scales very good with memory speed and interleaving. Running an APU on 1333MT/s memory would bottleneck it's potential render performance significantly since it is using system memory as video memory. I would advise selecting a memory kit that is configured both dual rank and dual channel with a profiled speed of at least 2133MT/s for best results with a Kaveri based APU.
The key differences between an A10-7850K and A10-7700K are the number of shaders in the iGPU and the stock clock speeds of the CPU. Ironically, these differences don't do much for gaming performance because most games are going to bottleneck pretty hard on the Render Output Units and VRAM Bandwidth of the APU, which are the same for both the 7700K and 7850K. The reason I bring this up is to point out where the peak value is for buying into an APU. With current pricing of the 7700K being 30% lower than the 7850K, I believe the 7700K offers the better value. Once we get to the price point of the 7850K, we could probably configure an 860K or Pentium with discrete GPU and get better results all around.
The 860K + GTX750Ti makes a wonderful low budget combination for gaming. Highly recommended. I actually advise the nvidia GPU over any AMD GPU for pairing with an AMD CPU because of the way that the nvidia driver and proprietary DX11 implementation are optimized. Alternatively, an i3-4130+R7 260X will produce similar results and have a similar implementation cost. Ironically, AMD's own implementation of DX11 is not as well optimized for their own CPUs as Nvidias implementation of DX11 is.
The FM2+ platform has some great quality boards under $100. I advise "splurging" the extra $20-30 and getting one of these nicely made A88X chipset boards.
----------
----------
Slavegamer :
...only thing you are missing is a video card, that is very important . Go with a AMD card like a Radeon R7 260X
The A10-7850K has a GCN architecture GPU built in and uses system memory as VRAM. Render performance is comparable to an R7 240/250 with DDR3. Nothing special but can play most games at 720P at medium or lower settings pretty well.