⁴ AMD 3DMark Vantage testing demonstrates more than 2x performance increase from ATI Radeon™ HD 3870 to ATI Radeon™ HD 4870, scoring 1626 and 3559 respectively in Extreme settings. The ATI Radeon HD 4850 has a peak power rating of 110 watts versus the ATI Radeon HD 3850 at 104 watts, a difference of less than 5%. The ATI Radeon HD 4870 has a peak power rating of 160 watts versus 135 watts for the ATI Radeon HD 3870, a difference of 18%.

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