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HIS HD6870 CrossFireX Review

Overclocking on reference boards indicates potential speeds a few weeks down the line when AMD partners release their own overclocked solutions with improved coolers and bios configurations.

Our overclocking tests were reasonably successful, although we didnt find huge overhead on the cores, with one card hitting 940mhz and the other 950mhz: 40mhz and 50mhz over reference speeds respectively.

The memory managed to peak at 1140mhz and 1150mhz: 90mhz and 100mhz over reference speeds.

We then wanted to run some tests with our overclocked results, settling on 940mhz core and 1140mhz memory for the final CrossfireX settings.

The overclock results are healthy, Unigine Heaven Benchmark shows a 4fps increase in Crossfire X and 3DMark Vantage scales with 300/600 points extra points in single and dual card mode respectively.

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