Every time new iMac get introduced I go right away to check environmental reports,
https://www.apple.com/environment/reports/
and every time all these years new iMac been getting more powerful but have lower and lower power consumption and I think this may be the first time they increased noticeably!
21.5 2015 38.3W vs 2017 45.9W that's almost 20% more!
27 2015 60.1W vs 2017 68.3W that's almost 14% more
21.5 2013 37.0W, 2012 41.8W, 2011 85.6W, 2010 92.8W
27 2013 77.4W, 2012 78.9W, 2011 140W, 2010 149W
https://www.apple.com/environment/reports/
and every time all these years new iMac been getting more powerful but have lower and lower power consumption and I think this may be the first time they increased noticeably!
21.5 2015 38.3W vs 2017 45.9W that's almost 20% more!
27 2015 60.1W vs 2017 68.3W that's almost 14% more
21.5 2013 37.0W, 2012 41.8W, 2011 85.6W, 2010 92.8W
27 2013 77.4W, 2012 78.9W, 2011 140W, 2010 149W