GPU clocks running at half speed despite being overclocked
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GPU clocks running at half speed despite being overclocked
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Send message Joined: 20 Dec 09 Posts: 2 Credit: 107,671,523 RAC: 0  
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[color=blue]I have a GTX 480 and a GTX 285 both crunching Milkway two workunits at a time. Both of my graphics clocks run at half speed while crunching. Is that normal or is something misconfigured? The same thing happens for SETI and Collatz.[color=blue] |
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Send message Joined: 27 Apr 08 Posts: 3 Credit: 104,258,152 RAC: 0 
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[color=blue]I have a GTX 480 and a GTX 285 both crunching Milkway two workunits at a time. Both of my graphics clocks run at half speed while crunching. Is that normal or is something misconfigured? The same thing happens for SETI and Collatz.[color=blue] I had this problem after installing the NVIDIA Driver 270.61 (WHQL). After going back to 266.58 (WHQL) the problem disappeared. |
 Send message Joined: 24 Feb 09 Posts: 620 Credit: 100,587,625 RAC: 0 
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Normal in terms of time. There's no free lunch as they say :) When two WUs are loaded, they get half the card's crunching output each. So recorded time is twice as long, but twice the WUs are produced - net result is the same as one WU loaded, no gain as such... However, there can be a very slight gain depending on all sorts of factors of 2-3%, can be more. Essentially 2 WUs loaded complete in twice the time = same time as for one. Regards Zy |
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Send message Joined: 20 Dec 09 Posts: 2 Credit: 107,671,523 RAC: 0
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Very cool. Those new drivers didn't fold proteins well either. Thanks for your advice |
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