"Is the silicon die on your processor exactly the same as everyone else on your team?" Of course I have worked on projects where all the test dev and live hard

"Is the silicon die on your processor exactly the same as everyone else on your team?" Of course I have worked on projects where all the test dev and live hardware was explicitly brought from the same production run so the hard ware was identical down to the rev no of the pcb's - our hardware guy would have liked to have all the disk also from the same production run.