A lighter board is easier for two people to lift, and it puts less weight on the ceiling frame.
One Pro Max board weighs 15.3 kg. The unbranded boards of the same size that we see in the market weigh 17 to 18 kg. On a 1,000 sq ft ceiling of 42 boards, that is about 640 kg of Pro Max, and about 90 kg more with the heavier boards. Choose the frame from the span table of the section maker.