lt_dan_zsu :
Which one is better for gaming. According to tomhardware heirarchy they are in the same tier. But I'm assuming the 4170 is better as it is newer and has a higher clock. Also that one leaves more room for upgrade. But which one has higher Gflops? I couldn't find it anywhere else. Thank you for the help.
Okay okay,
First of all son, don't start name calling. 'verbalizer' knows more than you can ever even hope to know. The i7-930 is slightly better than the FX-4170. Yes they are in the same tier, and they can both be overclocked. It isn't the frequency that is important between these two. It is the IPC or Instructions per Clock (or Iterations per Clock/Cycle). This is where Intel has the edge. In one clock cycle it can handle more instructions than the AMD counterpart.
It looks like from your sig you already have an i7-930. If I were you, I would get a decent aftermarket air cooler (if you don't have one already) and put a mild overclock on that CPU. It's still high end despite being a few years old.
Considering a 4.0GHz overclock is fairly common for the i7-930, the FX-4170 would need to be clocked to about 6.0GHz just to keep up. And unless you have an elaborate liquid nitrogen cooling system, well it ain't gonna happen.