At my time at Intel, the company was fab-constrained. Intel ran some parts on outside fabs. The decision as to which ones was easily made by sorting projects

At my time at Intel, the company was fab-constrained. Intel ran some parts on outside fabs. The decision as to which ones was easily made by sorting projects in order of gross margin per wafer. Highest margin parts ran on Intel fab, when the fab was full, the project had to hunt down fab capacity elsewhere.