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Sapphire HD 7870 FleX Dual-X 2GB Review

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Power consumption of the system will be measured at both idle and loaded states, taking into account the peak wattage of the entire system with each video card installed. I will use Unigine's Heaven Benchmark version 3.0 to put a load onto the GPU using the settings below. A 15-minute load test will be used to simulate maximum load with the highest measured wattage value recorded as the result. The idle results will measured as the lowest wattage value recorded with no activity on the system.


  • Unigine 3.0 Heaven Benchmark
  • 1920x1080 Resolution
  • 8x AA
  • 15-minute load test
  • 15-minute idle test
  • Measurement is in watts













Overall the power usage was remarkably low for the performance offered by the Sapphire HD 7870 FleX Dual-X. The power usage jumped quite a bit when overclocked, but this was expected due to the increased voltage used to reach the extremely high clocks on the core. The 7870 is one of the lower power pulling cards in its range. It competes nicely by beating out the GTX 580 it competed with the whole way through. This can surely make the difference in your power bill if you run a gaming rig 24/7.

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