Here's something I noticed when I had my APC utility open and I was seeing how much power draw I have when idle, and when I'm watching a movie. I was adjusting my screen contrast presets back to original when I noticed my power fluctuating in the utility. So I decided to do some investigating. This is on my FX-60 system with my video card downclocked to 250MHz core and memory viewed on my Samsung T260 monitor.
The first one is with the contrast at it's lowest preselt setting of "Text". The second one is at the "Gaming" preselect, the next one is the "Movie" preselect and the final one is the "Dynamic Contrast" preselect which seems to pull more power when viewing the desktop, but accordingly adjusts itself over the internet, text, movies and so on, though sometimes in a few instances in games it auto adjusts to something undesireable so I just manually select the BrightView options. If you're looking to save power, and maybe even screen life, adjusting the contrast can make a big difference. That, and if you have a power hog of a graphics card like mine, detuning it can really drop the power and heat.
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02:39 AM by