I don't know if you guys know this, but just throwing this on the table for information purposes (just so you can be edumacated);
Whenever Intel has defective processors, they scrap them, melt them down and re-use the material over to make a brand new one. By defective processors, I mean like a quad-core with one faulty core that won't work properly, or some other internal problem.
Whenever AMD has a defective processor, what they do with it is determined by how bad the problem is. Faulty core in a quad core? Lock the broken core and sell it as a triple-core (why Intel doesn't even make triple cores like AMD). Two cores broken in quad core? Lock them both and sell as dual core. If something else is faulty within the processor, though, they usually will also melt it down and re-use the materials.