Weird two die Intel chip for sale on Ebay

The thing is being sold as "defective". The vendor claims it has two lumps of semiconductor on the top.

As you can see by clicking here.

What it just could be is an Intel Extreme Edition with off die cache. It would be easy, perhaps, in development terms to bung a thing like that together, but expensive wiring two dies like this at the production stage.

Mind you, the EE is a bit expensive, no? As always, let the buyer beware. µ