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XFX & Sapphire HD 7950 3GB Review

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Testing:

Power consumption of the system will be measured at both idle and loaded states, taking into account the peak voltage of the system with each video card installed. I will use Unigine's Heaven Benchmark version 2.5 to put a load onto the GPU using the settings below. A 15-minute load test will be used to heat up the GPU, with the highest measured temperature recorded as the result. The idle results will be measured after 15 minutes of inactivity on the system. With dual-GPU setups, the two core temperatures will be averaged.

Settings

  • Unigine 2.5 Heaven Benchmark
  • 1920x1200 Resolution
  • 8x AA
  • 15-minute load test
  • 15-minute idle test
  • Measurement is in watts

 

 

 

 

 

 

 

 

 

 

   
   

Lower = Better

 

The XFX HD 7950 offers the lowest power consumption at stock speeds under idle and the second lowest under the stock load testing. Sapphire's card delivers the lowest consumption under load with its lower clock speeds that need less current to run. Under load, 7950s took more current to run the overclocked speeds, driving up the consumption results into the 370 watt range.




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