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Sapphire Radeon HD 6990 Review

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Testing:

Power Consumption of the system will be measured in both idle states and loaded states and will take into account the peak voltage of the system with each video card installed. I will use MSI Kombuster to load the GPU for a 15 minute test and use the peak load of the system as my result for the maximum load. The idle results will be measured after 15 minutes of inactivity on the system. For load testing the GTX 500 series, I will once again use Crysis Warhead run at 2560 x 1600 using the Gamer setting with 8xAA looping the Avalanche benchmark scenario.

Settings

  • MSI Kombuster Stability test
  • 1920 x 1200 Resolution
  • 8XAA
  • 15 minute load test
  • 15 minute idle test
  • Measurement is in Watts

 

 

 

 

 

 

 

 

 

 

   
   

Lower = Better

 

At stock speeds, the HD 6990 delivers lower idle power consumption than the HD 5970 but under load it is slightly higher. The opposite is true when overclocked. When compared to the pair of HD 6970's in Crossfire, the HD 6990 is more efficient. Even so, the person in the market for this style of card is not going to be to concerned with the power consumption numbers but the raw performance delivered. Most people will likely have either multiple monitors or a large single display to run 2560 x 1600 or 5760 x 1080.




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