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XFX 5870 + 5850 CrossFire Review

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To test the XFX HD 5850 and 5870 in CrossFire, the cards will be used in a range of games and benchmarks to see how well it performs against other competitive products. The games consist of Far Cry 2, Crysis Warhead, Darkest of Days, Call of Duty World at War, Warhammer 40,000 DOW II, Batman: Arkham Asylum, Resident Evil 5, Left 4 Dead, and the benchmarks are 3DMark 06 and 3DMark Vantage. After running the card normally through the testing phase, the video card will then be overclocked and then retested. The results of the overclocked will be saved for the end while the stock speed performance can be compared to other cards. All of the system settings remain the same from card to card and test to test, with the exception of disabling PhysX for Nvidia cards on 3DMark Vantage and in this special case the CPU speed will be further increased with the overclocked video card speeds for a better representation.


Comparison Video Cards:



Overclocked settings:

  • XFX HD 5870 1000/1200
  • XFX HD 5850 1000/1200

Overclocking the cards in CrossFire was very easy. Voltage control was the same between the two XFX HD cards, the highest overclock I tried for was 1GHz on the GPU core and 1200 MHz on the GDDR5 memory. AMD GPU Tool did have some options for voltage, but just what was in the BIOS and not any over-voltage options. The cards easily exceeded the ATI Catalyst Control Centers capabilites for both the GPU core and memory speeds, so, AMD GPU Tool and MSI Afterburner were used in conjunction - GPU Tool for overclocking and MSI Afterburner for fan speed control and voltage control. GPU-Z was also useful for temperature and speed statistics, the average idle temperature was around the mid-thirties Celcius, load overclocked temperatures reached low and mid 60's per both cards. GPU-Z 0.3.6 supports the both new cards.



  • Video:
  1. Far Cry 2
  2. Crysis Warhead
  3. Darkest of Days
  4. Call of Duty World at War
  5. Warhammer 40,000 DOW II
  6. Batman: Arkham Asylum
  7. Resident Evil 5
  8. Left 4 Dead
  9. 3DMark 06 Professional
  10. 3DMark Vantage


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