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Sapphire HD6790 Review

gotdamojo06    -   April 7, 2011
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Testing:

Testing of the Sapphire HD6970 will consist of running it and comparison cards through the OverclockersClub.com suite of games and synthetic benchmarks. This will test the performance against many popular competitors. Comparisons will be made to cards of equal and greater capabilities to show where they fall on the performance ladder. The games used are some of today's newest and most popular titles to give you an idea of how the cards perform relative to each other.

The system specifications will remain the same throughout the testing. No adjustment will be made to the respective control panels during the testing other than applying the AA and AF settings manually in the control panel. I will test the cards at stock speeds, then overclocked in order to see the effects of any increases in clock speed. The cards are placed in order from highest to lowest performing in the graphs to show where the cards fall by comparison. In addition to the stock testing, I will include performance testing in both Surround (NVIDIA) and Eyefinity (AMD) with the appropriate cards. For this review, a few new games have replaced some of the aging titles.

 

 

Comparison Video Cards:

  • Galaxy GTX 470 GC
  • XFX HD 5870
  • Sapphire HD 6870
  • XFX HD 6850
  • Sapphire HD 5850 Toxic
  • EVGA GTX 460 FTW
  • Sapphire HD6790

 

Overclocking:

  • Sapphire HD 6790 1000MHz / 1230MHz

When it came down to the overclocking of the Sapphire HD6790, I was able to get the GPU clock speed all the way up to 1000MHz, which is about a 19% overclock on the GPU core with no voltage adjustments. I was able to get the clock speed a little bit higher, however it was not stable enough to run all of the benchmarks in the OCC benchmarking suite. The memory was a little bit more tricky to overclock on this card. I was trying to get up around 1250MHz, however anything that I set above 1235MHz was unstable and would give me artifacts on the screen, so I had to back my clocks down to 1230MHz. That is, however, about a 17% increase on the memory. Overall, the overclocking of the Sapphire HD6790 was just like any other video card when it comes to the clocking without using any voltage adjustments.

 

Maximum Clock Speeds:

Testing for the maximum clock speed consists of looping Crysis Warhead and Unigine 2.5 for 30 minutes each to see where the clock speeds will fail when pushed. If the clock speed adjustment fails, then the clock speeds and tests are rerun until they pass the full one hour of testing.

   

 

  • Gaming Tests:
  1. Aliens vs. Predator
  2. Metro 2033
  3. Crysis Warhead
  4. Call of Duty: Modern Warfare 2
  5. Just Cause 2
  6. Unigine Heaven Benchmark 2.1
  7. Batman: Arkham Asylum
  8. Battlefield: Bad Company 2
  9. 3DMark 11 Professional
  10. 3DMark Vantage
  • Usage:
  1. Temperature



  1. Introduction & Closer Look
  2. Closer Look: The Video Card
  3. Specifications & Features
  4. Testing: Setup & Overclocking
  5. Testing: Aliens vs Predator
  6. Testing: Metro 2033
  7. Testing: Crysis Warhead
  8. Testing: Call of Duty Modern Warfare 2
  9. Testing: Just Cause 2
  10. Testing: Unigine 2.1
  11. Testing: Battlefield Bad Company 2
  12. Testing: 3DMark 11
  13. Testing: 3DMark Vantage
  14. Testing: Temperatures
  15. Testing: Power Consumption
  16. Conclusion
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