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Sapphire HD4850X2 Review

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At OverclockersClub.com we use a set of benchmarks to stress the graphics card. We will use a series of newer gaming benchmarks, as well as some that are more seasoned, to show just how well the Sapphire HD4850X2 compares to some of the other enthusiast video cards on the market. We'll be using single GPU models, with the exception of the HD4870X2 from Sapphire, to to find out just what the little brother of the aforementioned HD4870X2 has to offer in the way of performance. All driver settings and clock speeds will be left at factory defaults for both the CPU and GPU in an effort to minimize or eliminate any variables that could impact the results. The test system used in this review is listed below. After testing the card at stock speeds, I'll overclock it to see what kind of performance can be gained. All testing is performed with the default settings in the respective control panels, as well as default settings in the BIOS of the motherboard used in this test. For this round of testing, our drivers have been updated to 177.79 for the Nvidia cards and Catalyst 8.8 for the ATI video cards used in this review. The exception being the driver supplied by Sapphire for the HD4850X2 as the 8.8-8.10 Catalyst drivers would not install with this card.



Comparison Video Cards:



Overclocked settings:

  • Sapphire HD4850X2 675/1145MHz

On the first attempt I was at 700MHz on the core and 1165MHz on the GDDR3 memory but was soon starting to set random failures. I will investigate this further and return with a full overclocking report on the HD4850X2. With the stock performance I cant wait to see how it clocks.


  • Video:
  1. Crysis
  2. Knights of the Sea
  3. BioShock
  4. Call of Duty 4
  5. World in Conflict
  6. Far Cry 2
  7. Company of Heroes: Opposing Fronts
  8. 3DMark 06 Professional
  9. 3DMark Vantage


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