But the whole problem at Intel is that they're not at the level of TSMC, they're years and generations behind. Splitting them up won't just magically make the fab business be better, and without the profit margins of the sale of processors it's unlikely they'll have the resources to invest to get them to be good. Case in point: AMD are doing very well after spinning off their fabs, but their fabs are not doing very well (relatively of course - they're just stuck to where they split and haven't had meaningful advances; but they're still a profitable business because those older chips are needed too).