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Hello, I'm interested in buying an ATI card for the ocasional gaming session; but since this is a desktop computer that's going to spend most of its time doing 2D (or light 3D -- compiz and the like) stuff, I'm specially interested in the idle power usage figures.
So far, ATI seems clearly like the big winner here.
So imagine my surprise when after browsing this forum for a while, I find out that ATI cards will refuse to lower clocks when a second monitor is enabled. How true is this? Could anyone show or test power figures for any ATI card under Linux (but ofc I'm specially interested in 5670, 5750 or 5770 results which are the cards I'm currently looking at), please?
Also, can I override any automation and force lower clocks (for example ASUS ATI BIOS for the 5750 seems to use 150 Mhz for core and 300Mhz for mem) using the aticontrol utility? Does this work, does it cause flicker on second monitor, or does the increased power usage come from other sources?
So far, ATI seems clearly like the big winner here.
So imagine my surprise when after browsing this forum for a while, I find out that ATI cards will refuse to lower clocks when a second monitor is enabled. How true is this? Could anyone show or test power figures for any ATI card under Linux (but ofc I'm specially interested in 5670, 5750 or 5770 results which are the cards I'm currently looking at), please?
Also, can I override any automation and force lower clocks (for example ASUS ATI BIOS for the 5750 seems to use 150 Mhz for core and 300Mhz for mem) using the aticontrol utility? Does this work, does it cause flicker on second monitor, or does the increased power usage come from other sources?
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