I am in the same situation. I have a Phenom II X6 1055T and i was thinking about upgrading to FX8350 but, at some scenarios my phenom beats FX and 1100T can EASILY beat FX8350
Do NOT think "upgrading" to FX8350 from Phenom. I can understand buying 8350 if you are building a new PC but switching to 8350 from 1100T is not an upgrade.
I dont know if you believe but I am not an AMD fanboy, neither an Intel fanboy. I had HD5850 GPU and I couldnt play BF4 because of some bug that only occurs on AMD setups. I upgraded to GTX760 for that. Right now, I cant even play Dungeon Defenders II because game runs horribly on AMD CPUs. Also Dying Light runs very badly on AMD CPUs, even developers said that they are aware of AMD chip issue. AMD is problem.
If you are playing same games, look at some benchmarks and if benchmarks are good buy the AMD chip BUT, if you want to play the new games when they released, go for 4690k
Thats my 2 cents, I used AMD and I regret it.