JF-AMD on his blog :

Turbo CORE – We have disclosed that we would include AMD Turbo CORE technology in the past, so this should not be a surprise to anyone. But what is news is the uplift – up to 500MHz with all cores fully utilized. Today’s implementations of boost technology can push up the clock speed of a couple of cores when the others are idle, but with our new version of Turbo CORE you’ll see full core boost, meaning an extra 500MHz across all 16 threads for most workloads.
New Turbo Core rocks . Imagine the TDP headroom on client Zambezi parts if 16 core server part has 500Mhz headroom. 1 Ghz turbo core on 8 BD cores,anyone?

The rest is on the link.

Few more important tid bits:
Product Schedules – This is the most asked question that I get. Today we gave granularity down to the quarter. We expect to launch the client version of “Bulldozer” (code named “Zambezi”) in Q2 2011. The server products (“Interlagos” and “Valencia”) will first begin production in Q2 2011, and we expect to launch them in Q3 2011.

Die size – As a matter of fact, we are able to put 8 total cores in a piece of silicon that is smaller than our current 6-core dies.

L2 and L3 cache – Each module will have a massive 2MB L2 cache for the 2 integer cores to share and you’ll see an 8MB L3 cache shared per die (16MB on the 16-core “Interlagos” processor.)