Panasonic TH-42PZ700 First ever 42" Full HD Plasma

[Mintmaster]

So power draw varies with backlight (BL on the graph) level as you'd expect, but also because of what's on the screen, and certainly isn't constant. The variance isn't huge, and I don't know how it compares to PDP, but it's there.

You're talking about 7W max of content related variance about a 100W base consumption. That counts as constant in my book, and in no way discredit's Gubbi's claim. Plasma will vary a lot more than that.

Here's a page I stumbled upon:
http://www.g4techtv.ca/callforhelp/shownotes/0283.shtml?regular

Samsung plasma:
standby: 1 watt, 0.06 amps
black screen: 65 watts, 0.58 amps
white screen: 256 watts, 2.23 amps

standby: 10 watts, 0.17 amps
black screen: 200 watts, 2.55 amps
white screen: 199, 2.58 amps

However, the strange thing is that when measuring power while viewing material, LCD still came out marginally ahead even for dark material. The Plasma has 10% more viewing area (42" vs. 40"), but they didn't test brightness levels.

 

[Rys]

You're talking about 7W max of content related variance about a 100W base consumption. That counts as constant in my book, and in no way discredit's Gubbi's claim. Plasma will vary a lot more than that.

Oh, of course, I was just trying to show that there was variance in LCD power consumption of some kind.

However, the strange thing is that when measuring power while viewing material, LCD still came out marginally ahead even for dark material. The Plasma has 10% more viewing area (42" vs. 40"), but they didn't test brightness levels.

That'd be the more interesting test, where you test with equal brightness for both.

 

[Gubbi]

Here's a page I stumbled upon:
http://www.g4techtv.ca/callforhelp/shownotes/0283.shtml?regular

Samsung plasma:
standby: 1 watt, 0.06 amps
black screen: 65 watts, 0.58 amps
white screen: 256 watts, 2.23 amps

Here's a datapoint (bought a precision power gage-thingy): 1 hour of Crackdown used 0.179kWh on my Pioneer 507xa. Lower than expected, especially since idling in the 360 dashboard uses 280W! It might be because of a full day-night cycle in Crackdown.

Cheers