The i7 is a beast, don't forget it has 4 virtual cores. Not sure if wow will utilize those though.
The i7 can overclock brilliantly and will beat the AMD hands down in just about every benchmark.
You pay for the performance though, intel is a lot more expensive than an AMD.
You will be best off buying a graphics card honestly, it doesnt have to be crazy good but when running 8 bots (Which the i7 can easily do) you would want say a medium load on a graphics card rather than a heavy load on your onboard.
Yes, you will need a graphics card and it doesn't have to be an expensive one. I have Palit GTX 560Ti 256bit 2GB, and it's load is like 5-6% with 3 WoWs running at 25fps.
The intel is better, no doubt about this, but it's also more expensive and unless you plan to run like 30-40 bots, you don't need an expensive CPU, not even the 8350.
The FX series are usually very good in multi-threading which is what you are going to do, altho this specific intel CPU is better than the 8350 in multi-threading aswell (not by a lot, but still is).
I have FX-8150, and each WoW+HB takes roughly 5% but I have UNDERclocked it to 2.6GHz, if I have to I can OVERclock it to 4.6-4.7GHz (It's not even hard to do it! I just had to increase the voltage juuuuust a little, without touching the voltage it's going straight to 4,2 GHz, I didn't want to try higher than 4.7 but it was stable!) so at the moment I am using like 50% of it's power...
Again it depends on how many bots you're planning to go with, but like I said, if you are buying this CPU specificly with the only purpose to use it for bots, and unless you plan to use 15+ bots you don't need neither of this 2 CPUs.
wow doesn't really support 8 cores..
you would be better off with the intel for 4 cores, with out graphics, becuase that way you can over clock the hell out of it.
much better performance that way.
It doesn't have to, you won't run the bots to get extreme FPS ratings at Ultra settings. You just need like 25-30 fps per client. (I've heard ppl runing them with 15)
In my country, 8350 costs about 270$, while the i7-3770k costs about 430$, the difference in the price is HUGE, and again unless you want to run a huge amount of bots, you DONT need the i7.