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Sapphire Radeon HD 6870 1GB Video Card Overclocked

By Shawn Baker from Oct 25, 2010 @ 12:19 CDT
TweakTown Rating: 93%Manufacturer: Sapphire

The Card








Looking at the card, you're not going to see anything you didn't see already with the reference AMD one we looked at, except for a sticker that Sapphire has opted for. Across the top we've got the two 6-Pin PCI-E power connectors along with a single Crossfire connector.




Connectivity is in the form of a Dual-Link DVI, Single-Link DVI, HDMI and two 1.2 Mini DP connectors. It's great to see that Sapphire has included a mini DP to DP connector so you can use that option straight away if you've got a monitor that supports the connector.




Out of the box the Sapphire HD 6870 1GB carries the reference clocks that we saw on the AMD model. That's a 900MHz core and a 4200MHz QDR memory clock. That's a bit boring, though, so let's see what we can do with TRIXX when increasing the voltage to 1.299v.




We managed to get the core up to 1035MHz which is over 100MHz from the stock speed. As for the memory, we pushed that 100MHz or 400MHz QDR which equates to a total speed of 4600MHz QDR; a really nice overclock.


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