if u want to know which option is best for gaming then third one. but if u get ati 5870 and amd phenom 2 x6, then that would be better. i know people say that x6 processor of amd isnt good for gaming but u can overclock it and also in the future games will start to use more cores and then the performance will increase. else try to fit in core i5 with 5870 to get a good boost. hope i helped.