Of the 2 CPu being discussed, the difference in benchmark perfomance is about 400 points. IE: nothing that you will ever notice. I have been a long time AMD user, I have the same cpu in all 4 machines in my house. Use the money you save on cpu to buy more ram. At the end of the day, cpu number crunching in nothing if you do not have the ram to match it. 16gig minimum, 32 gig if your board can take it.
PassMark Intel vs AMD CPU Benchmarks - High End
Intel Core i7-3770K @ 3.50GHz == 9,645
AMD FX-8350 Eight-Core == 9,246
Oh and why do i use AMD over Intel, well i prefer how the AMD's heat sink is attached to the motherboard. I have had those stupid intel push pins pop out or the board warps leaving poor contact between the cpu and heat sink, and to fix this you have to buy a after market party heatsink.