Just put down the crack pipe. That's the drugs talking all that nonsense.
AMD paid GF not once, but twice to make modifications to the wafer supply agreement. These changes in total have already cost AMD more than a half billion dollars of cold, hard cash.
AMD hasn't saved a penny yet. Any savings would arise after AMD swallows down the half billion in expenses, which given its present predicament where it's not selling many chips (lost ASPs, lost market share, climbing inventories) it will take AMD half a decade to recoup those payments to GF.
The reality is that AMD doesn't have years. It has months. No more than 6 to be precise. It will never realize any benefit from these changes. These were forced upon it by the Arabs who wanted to move value out of AMD and put it into more viable GF, plain and simple.
What these payments have done near term is insure that AMD has no possibility of making the level of R&D investment it needs to make to fix its badly broken CPUs.