With the launch of Intel's Ivy Bridge getting extremely close, it's impossible to keep these retail chips out of the hands of people who haven't signed NDAs. More and more people are getting a hold of the chips and overclocking them. Someone has finally managed to snag a boxed retail version of the chip and found something interesting.
As you can see in the picture above, the rated TDP is 95W. Intel has been telling us along the way that the quad-core Ivy Bridge parts were to be rated at 77W TDP, so this is quite the discrepancy. The only possible reason for this, other than it being the true TDP, is if there was a misprint on a large batch of processors, because sources are saying all of the boxes are marked this way.
Additionally, people overclocking the new part have found it to be a worse overclocker than Sandy Bridge. The main issue with overclocking is that because of Intel's new Tri-gate transistors, they are packed so tightly together that the die size is tiny and doesn't allow adequate heat removal. As such, overclockers are reporting that Ivy Bridge looks to be 200 - 300 Mhz worse than Sandy Bridge.
Somewhere between 4.6 - 4.7 Ghz the temperature gets so high the processor throttles. Of course, once we finally get a chip in to review, we will either be able to confirm this rumor or bust it. As for right now, take it with a grain of salt, however true it may appear to be.