My FX6300 stock fan is really loud

When I play demanding games, my stock fan gets really loud and I would like to buy an aftermarket one. What are some good ones?

There's all kinds of choices but good one is the Hyper 212+, then you CM Hyper TX3 etc

@04dcarraher: Will the fan sound be significantly quieter? Is it worth the extra $40?

Yes, it's worth it, not just because of better cooling but much quieter than stock fans.

Generally the bigger the fan the quieter it will be.

I also got Hyper 212 Evo for my FX-6300 and it's really quiet plus the temps are much lower. Make sure it will fit in your case first. I have like 2mm clearance!