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Average/Total Benchmark Power Consumption
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Average Benchmark Power Consumption
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Processor
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NOD32
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WinRAR
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iTunes
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TMPGEnc
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C2Q Q8200S
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75W
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84W
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78W
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96W
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X4 620 UV*
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85W
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82W
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88W
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104W
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C2Q Q6600
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86W
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99W
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92W
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116W
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X4 630 UV*
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93W
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90W
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97W
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116W
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X4 620
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93W
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89W
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99W
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124W
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X4 630
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99W
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95W
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106W
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131W
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X2 550 BE
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106W
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105W
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108W
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118W
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X4 810
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109W
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104W
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112W
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137W
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X3 720 BE
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112W
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111W
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118W
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130W
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*X4 630 undervolted by 0.125V, X4 620 by 0.2375V.
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Total Benchmark Power Consumption (watt-hours)
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Test State
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NOD32
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WinRAR
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iTunes
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TMPGEnc
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Total
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C2Q Q8200S
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3.73
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5.20
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5.63
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6.29
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20.85
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X4 620 UV*
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4.79
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5.58
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8.41
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6.12
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24.91
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C2Q Q6600
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4.20
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6.08
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7.03
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7.70
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25.01
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X4 630 UV*
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4.91
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5.95
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8.65
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6.41
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25.92
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X4 620
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5.24
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6.06
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9.46
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7.30
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28.06
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X4 630
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5.23
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6.28
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9.45
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7.24
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28.20
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X2 550 BE
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4.53
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5.51
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8.52
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9.64
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28.20
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X4 810
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5.60
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6.12
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10.52
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7.95
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30.19
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X3 720 BE
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5.20
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6.04
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10.26
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11.12
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32.62
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*X4 630 undervolted by 0.125V, X4 620 by 0.2375V.
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When we calculated the total number of watt-hours used during our tests, we
found that the new Athlon II's beat their Phenom II cousins — the X4 810
by 7% and the X3 720 by 14%. The dual core X2 550 matched their energy efficiency
due its superior performance in the simpler applications in our test suite,
thanks to its L3 cache and higher clock speed. The Q6600 used about 11% less
while the 65W Q8200S dominated both Athlons by 26%. Undervolting brought the
two processors basically on par with the Q6600.
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