At stock speeds, yes the 1100T would be slightly faster, but what you have now (@ your 3.2 OC) is already as fast as the 8150.
I honestly see no reason for you to "upgrade" unless you just like to burn money, lol. You would see almost literally no difference in going from the 1055T @ 3.2 to either the 1100T or 8150.
You might as well wait for Piledriver, since they'll be here very soon, and even then, I'm not sure it'll actually be worth "upgrading".
Though, to be honest, as you mentioned, DJ, OP would see no difference
especially while gaming!