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Hd 5770 dropped clocks in cpu-z

Last response: in Graphics & Displays
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July 22, 2010 3:01:20 PM

Hi everyone,

I recently bought an hd 5770. Before installing the driver, I checked cpu-z (graphics tab) and it showed 849MHz core clock and 1200MHz memory clock. After installing the latest ATI driver, I checked again and saw the clocks dropped to 157Mhz and 300 Mhz respectively. Can somebody explain this to me?

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a c 130 U Graphics card
a b à CPUs
July 22, 2010 3:28:29 PM

When the cards aren't being used to their full potential, they are put into 'idle mode,' which severely drops the clocks so that it uses less power and radiates less heat. Load up a game and see what your clocks are then.
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a b U Graphics card
July 22, 2010 3:29:13 PM

This is because the newer drivers have power saving features that drop the core and memory when not running a 3D environment. I wouldn't worry, those numbers are normal.
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a b U Graphics card
July 22, 2010 3:32:23 PM

I think its ok and there is nothing to worry ,All graphics card drops its memory and clock speeds at idle to save energy ie to reduce power consumption,So when you game or do anything which requires graphics it will automatically raise its clock speeds .

Fore more details read this:

http://www.firingsquad.com/hardware/ati_radeon_5770_575...




@n33$H
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a b U Graphics card
July 22, 2010 5:47:53 PM

^+1 to what they said. The fact that these cards consume just 18W at idle is because the clock drop in frequency. When gaming the speed goes up to normal, 850MHz core and 1200MHz memory.
:) 
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July 23, 2010 12:49:41 AM

Thanks guys!!! Now I can sleep well. :) 
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July 23, 2010 12:11:26 PM

Best answer selected by jfem.
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