Go back another five years. https://everymac.com/monitors/apple/studio_cinema/specs/apple_cinema_display_30.html https://everymac.com/monitors/apple/studio_cin

Go back another five years. https://everymac.com/monitors/apple/studio_cinema/specs/apple_cinema_display_30.html https://everymac.com/monitors/apple/studio_cinema/specs/appl... the 30" Cinema Display from 2004 consumed 150W. The IBM "Big Bertha" T220 in 2001 at 20" consumed 111W. So that's the era when I'd expect a 27" to consume 80W or even more. By 2010 some 27" displays like the Sceptre X270W consumed less than 45W. https://images.anandtech.com/graphs/apple27inchcinemadisplay_092610174635/24898.png https://images.anandtech.com/graphs/apple27inchcinemadisplay...