Does Anyone Know the Model Number/Sku for the GSIV with the Octa CPU?

I found a few sites taking pre-orders on the international unlocked GSIV but they aren't specifying which CPU it has. If I am going to spend the money to import an unlocked GSIV I want to make sure I get the Octa CPU. It is blowing away everything else in the benchmarks and the S4 600 in the other model isn't even close.