AMD? No, AMD is a lame duck that can go bankrupted at any moment.
ARM? in smartphones and toy tablets, but for real performance tablets and PCs and PC convertibles, not even close.
BTW, all this talk about AAPL switching over to ARM for their macbooks is quite ridiculous. As an earlier poster put it...AAPL's profit is at an all time high, why would they switch to ARM for their macbooks? The opposite is more likely.