Plus even if it is the hex core chip, how do you know it will work? Has any bios updates been released to support the new chips? prob not.
Plenty, I know with Asus anyways there is a list of which BIOS for which motherboard will work. The new P6X58D Premium is ready out the box.
But yes, Kudos on the processor..but with only an estimated 2 months till estimated official release I would have personally waited and got the 3.33ghz X-E (unlocked multiplier) version for around the same price or a little less.