Nobody knows, and nobody will know, until at least 6 months from now.
And, by then, Haswell may be a much better gaming CPU, anyway.
So, just wait until they are actually being reviewed, because the only people that could tell you have great incentives (job and reputation) not to do so.
"The computer can't tell you the emotional story. It can give you the exact mathematical design, but what's missing is the eyebrows." - Frank Zappa