Intel's Core i7 notebook chips may all consume too much power to be used in anything but high-end notebooks, a late leak indicates. Also known as Clarksfield, the 1.6GHz and 1.73GHz quad-core parts were originally thought to use 35W of peak power, suitable for average and some thin-and-light notebooks, but are now estimated to use 45W and would be ruled out for all but larger, desktop replacement
