Just like powering on the engine again, which costs fuel, does it cost any energy (above the default usage) to switch between the iGPU and dGPU? I just installed gfxCardStatus which shows a notification when my MBP 15" '16 toggles between the Intel chip and the AMD chip. But this happens very often. So I wonder whether the jump, even for half a second, costs any energy? Hereby I mean the energy consumption to activate the card. This excluded the default energy usage the chip consumes when active.