AMD Radeon HD 6870 & 6850 Graphics Cards Debut

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Before bringing this article to a close, we'd like to cover a few final data points--namely power consumption and noise. Throughout all of our benchmarking and testing, we monitored how much power our test system was consuming using a power meter. Our goal was to give you all an idea as to how much power each configuration used while idling and while under a heavy workload. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the graphics cards alone.

Total System Power Consumption
Tested at the Outlet



The new Radeon HD 6800 series cards fared very well in terms of power consumption. While idling at the Windows desktop, they had the lowest power consumption of the bunch. And while under load (running the Unigine Heaven Benchmark) the Radeon Hd 6870's power consumption hovered around 256 watts, which was right in-line with the lower performing Radeon HD 5850, while the 6850 came in at right around the 237 watt mark, which was the lowest of all of the cards we tested.

With relatively low power consumption characteristics, it should come as no surprise that heat and noise were non-issues with these cards. The Radeon HD 6870 and 6850 reference cards both idled at approximately 46'C - 48'C and under load they peaked at around the 80'C mark. And at idle, both cards were barely audible. Under load, the 6870 was audible but remained quiet and unobtrusive, while the 6850 was as well, although the 6850's fan produced a more "pitchy" whine.

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These are for the mainstream users. Not a viable upgrade from my 5870. Waiting on the Caymen 6890 XT for my next upgrade. Bring it!

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That's Cayman (Radeon HD 6970) and yep, we want it brought too! :)

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Good read!  Was glad too see some Branded cards, rather than the reference models I have seen so far.  Can't wait to see cayman and antilles coverage.

would love to hear about the stereoscopic 3d support these cards are introducing.

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Great review! The excellent scaling bodes well for the dual-GPU 6990.

Some things that confused me:

-The naming convention will make it all the harder to compare previous generation cards with the new generation. Perhaps AMD wants to create more low to mid-end offerings and needed to free up some numbering space.

-Little disappointed that AMD chose to debut the series with the upper mid-range cards. Can't wait to see how the 6900 series perform, but right now the performance numbers are good, but not thrilling.

-The improvement in power, heat and noise will be very interesting to see in the mobile versions of these cards.

 

So all in all, AMD has served us a great appetizer course, but no entrée.

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It's weird how Sapphire chose to use the stock fan on the 6870 but placed the good, quiet cooling fan on the 6850.

I have the Sapphire 6850 and its the quietest fans I have ever heard (or not heard), it only starts to get noticeably audible at 55%  inside a case but during OCCT/Furmark the fans only throttle up to 59% so its still relatively quiet when you are gaming.

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The Crossfire scaling is insane. Almost double performance in some games. That's just crazy. Not that I have the money to drop in 2 cards. I am getting a good size pay check tomorrow. About time to upgrade and now seems like a pretty good time to do that. My budget will most likely be around the $150 - $200 price point so this review hits that hard.

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I myself am also waiting for Caymen as well. I want that card to blow away the GTX480 if it wants to get my hard earned money.

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Any one know when the 6900 series cards will be out?

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@Der - We can't say exactly, but it won't be long.

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Marco C:

@Der - We can't say exactly, but it won't be long.

Sweet! In the next week or so then I would assume... 

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