GPUs (namely discrete ones) often have high maximum power draw, but that's because they're generally used for tasks that require computational heavy lifting. Th

GPUs (namely discrete ones) often have high maximum power draw, but that's because they're generally used for tasks that require computational heavy lifting. That doesn't mean they're particularly power-hungry in terms of watts vs. amount of work done. If you offload e.g. video decoding to a GPU, that's usually more energy-efficient than decoding on the CPU. (The heavy lifting is probably more energy-efficient on the GPU, too, but that's not directly relevant here.)