Half the battery on a higher powered CPU (the 4800H is 45W and the 4900HS is 35W if I recall correctly), plus a discrete graphics GPU (on top of the iGPU) and a

Half the battery on a higher powered CPU (the 4800H is 45W and the 4900HS is 35W if I recall correctly), plus a discrete graphics GPU (on top of the iGPU) and active cooling vs passive cooling, plus a 120Hz display on the G14 (and probably Apples is 60Hz). So a more power-hungry notebooks battery lasts half as long, but still in the double digits. Not quite a surprise there.