Dont know about 100 planets and 10-12 AIs, but you cant buy better computer for Sins than that. 4770 is the top of the line, is it not? I know there are sixcore CPUs, i happen to have one myself, but more cores wont make a difference, you need higher frequency for Sins...in which case 4770 is a better choice. Maybe get 4770k so you can overclock it to 4,5 GHz or more to squeeze even more power out of it. That would be the best solution for Sins perfomance-wise.
