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PowerColor Radeon HD 5970 LCS Review



Testing the PowerColor HD 5970 LCS will consist of running the card through the OverclockersClub.com suite of games and synthetic benchmarks to test the performance of the HD 5970 against many popular competitors to gauge its performance. The games used are some of today's popular titles to give you an idea on how the cards perform relative to one another. The system specifications will remain the same throughout the testing. No adjustment will be made to the respective control panels during the testing with the exception of the 3DMark Vantage testing where PhysX will be disabled in the nVidia control panel. Clock speeds on each card are left at stock speeds. I will test the PowerColor HD 5970 LCS at both stock speeds and then overclocked to see how much additional performance is available when you choose to overclock the card to see if it shows a significant improvement in performance for the effort.


Comparison Video Cards:



Overclocked settings:

  • PowerColor HD 5970 LCS 1010MHz/1254MHz

Since this card from PowerColor is water cooled, I was expecting big things from the card. The previous video cards I water cooled exhibited huge gains on the core clock speeds so that was the bottom line expectation. The last HD 5970 I tested was an aircooled card so I was limited to a lower voltage as well as the temperatures of the GPU cores. The air cooled card peaked at 69 degrees Celsius under load when overclocked using an 85% fan speed with 1.16 volts to the cores. The difference here is just stunning and of course really depends on your water cooling loop but using a loop that cooled the CPU as well as the card, the load temperatures with 1.275 volts to the cores averaged 35 degrees Celsius, a 34C difference that in the end contributes to the 1010MHz core clock speeds achieved on the PowerColor LCS HD 5970. To reach this level I opened up MSI's Afterburner utility and manually set the clock speeds and voltage to the levels I used on the last 5970 I looked at, which is 890MHz on the two Cypress cores and 1250MHz on the GDDR5 memory. The memory on this card scaled about the same so no more effort was expended there and all of my focus went to the GPU cores. These I bumped up in 20MHz increments until I had lock ups in the stability testing then I backed down and adjusted the voltage. Wash, rinse, repeat until I found what were the final clock speeds I could achieve. All in all, a very healthy overclock.


  • 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

  1. Introduction & Closer Look
  2. Closer Look (The Video Card)
  3. Closer Look: Drivers & Programs
  4. Closer Look (Catalyst Control Center)
  5. Specifiactions & Features
  6. Testing: Setup, Overclocking
  7. Testing: Far Cry 2
  8. Testing: Crysis Warhead
  9. Testing: Darkest of Days
  10. Testing: Call of Duty World at War
  11. Testing: WarHammer 40,000 Dawn of War II
  12. Testing: Batman Arkham Asylum
  13. Testing: Resident Evil 5
  14. Testing: Left 4 Dead
  15. Testing: 3DMark 06
  16. Testing: 3DMark Vantage
  17. Conclusion
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