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Sapphire Radeon HD 5970 OC

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Posted November 18, 2009 by Jake in Video Cards

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by Jake
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Temperature & Noise

To test temperatures, it is a simple matter of firing up FurMark and letting it run for awhile until the temperatures level out. FurMark pushes GPU thermal loads extremely high, and can be considered a worst-case scenario.

As far as temperatures go, the Sapphire 5970 OC packs some monster horsepower, and with the dual chips, even though they are only 40nm chip, we’re not expecting massive temperature drops. We left the fan on Auto for the testing. We had hoped to run it full blast to see what would happen but due to driver issues we could not manually adjust the fan speed.

Temperatures

Posting an idle temperature of 53°C is very good, and while 88°C load isn’t anything brag about, we must remember it is a result of Auto settings on the card-killing FurMark. Further, although the cooler cannot measure up to the impressive solution on the Sapphire 5870 Vapor-X card, we aren’t disappointed because the reference 5870 cooler runs at 87°C at load, so the vapor chamber technology here on the 5970 is keeping a dual-GPU card within only 1 degree Celcius of the single-GPU sibling. That is impressive.

As far as noise levels go, the 5970 OC is very quiet when running at Auto fan setting and isn’t being taxed very hard. When you’re gaming the fan ramps up, it is audible but not offensive by any means, and will be fine inside a case. Perhaps more surprising was even at 2000 RPM the fan pitch and noise levels weren’t nearly as bad as previous ATI cooing fans which tend to sound like hair dryers. Even with the monster horsepower packed into the 5970, the temperatures and noise levels are kept very reasonable.

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