Hi. How many watts does an iMac set to not Sleep but the display switches off. I believe the Late 2009 iMac has 300 watts but what does 300 watts mean is that everything at maximum (full brightness, 100% CPU and GPU load, hardrive is spinning at its fastest, all the fans are at 5500 rpm, full power)?
Thank you. God bless, Proverbs 31
iMac with Retina 5K display, macOS Sierra (10.12.4), Late 2015 8GB M395 2TB Fusion Drive
This Apple Support Topic doesn't address power consumption when idle with Screen Sleep turned on:
iMac power consumption and thermal output - Apple Support
These power consumption charts are for 2012 iMacs (the newest ones I could find):
Save a few bucks by turning your Mac off or letting it sleep
Going to the 2012 list, I found that the 27-inch iMac uses 79.8 W of power when it's actively in use, 20.6 W when it's in that "idle mode with display off", 1.03 watts when in sleep mode and .22 W when turned off.
That can vary so much, depending on what's attached. The simplest and most accurate way to find out is get those small meters that plug into your wall socket between the socket and your power cable to the Mac.
You will be able to use it on every device in your house and get a real shock when you look at what your large screen TV(s) are using whilst supposedly "off".
In a world where we are supposed to reduce and save power we are doing everything the complete opposite.
Apple talks the talk but really walks the opposite with always on, rechargeables and multiplied externals due to inadequate unupgradeable internal space.
Peter
How Many Watts Estimate Does an iMac Consume with the Sleep Feature Off?
