If you are satisfied with this: http://www.youtube.com/watch?v=RjgQ_IXDyns, then yes, it can also save money and watts because the the APU (GPU integrated) is 100w (http://www.cpu-world.com/CPUs/Bulldozer/AMD-A10-Series%20A10-5800K.html) and the FX 6300 is 95w (http://pcpartpicker.com/part/amd-cpu-fd6300wmhkbox) but with nvidia GeForce 8800gt it obviously go more.
FX 6300 is more powerful than a10-5800k but if you are satisfied and/or don't need the extra performance, I would say to go with the a10-5800k.