Oooo, speaking of power, I've heard a few mentions about the power it takes to move a single bit on-die versus off-die (down in the femtojoules and stuff, but i

Oooo, speaking of power, I've heard a few mentions about the power it takes to move a single bit on-die versus off-die (down in the femtojoules and stuff, but it does add up). I wonder if that's it; simply keeping a PCIe link awake between various chips uses a bit of power to drive the trace capacitance, for instance.