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| Grafikkarten News | Montag, den 28.01.2008 | ||||
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The core frequency on the R680 is higher than that on an RV670, which is a shocking move. The ATI Radeon HD 3870 has a core clock of 775 MHz while the ATI Radeon HD 3870 X2 has been increased up to 825 MHz. This might have been down as the memory clock was decreased from 2.25GHz GDDR4 to 1.8GHz GDDR3. The ATI Radeon HD 3870 X2's cooling fan operates at 36dBA, which is just slighting higher than the 34dBA seen on the Radeon HD 3870. The boards peak power usage is also 91W higher than the Radeon HD 3870 at 196W under full load. Having two RV670 cores on one board doubles many things like the frame buffer size and the math processing power, but the power consumption does not double.
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