It's about 10% of Intel's unit sales, but with a tendency to affect their more expensive chips, so it will _hurt_ Intel.Silicon will likely be Apple-only, so that really depends on how much it will actually matter in the world compared to everyone else on regular CPUs like AMD. Apple is a fancy brand but it doesn't have the same marketshare as other Windows PCs. I guess Intel is getting ready for a change, if Apple was a significant-enough amount of revenue, but I doubt said change will be earth-shattering unless the rest of the world follows Apple and moves to ARM