Core i7-980X: Dialing In Efficiency With The Right Overclock

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Power Consumption And OC Table

This part is amazing. Even under increased voltage, the six-core Gulftown processor remains at a total system power of roughly 85W as it idles.

Peak power depends on clock speed, but also, even more importantly, on voltage. The slight voltage increase at 4.0 GHz doesn't make much of an impact. But tweaking more aggressively at 4.13 GHz is more noticeable. System peak power scales rather linearly with clock speed, as long as you don’t increase CPU voltage.

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Core i7-980X	3,333 MHz	3,466 MHz	3,600 MHz	3,733 MHz	3,866 MHz	4,000 MHz	4,134 MHz
Multiplier	25x	26x	27x	28x	29x	30x	31x
Turbo multi	26x	27x	28x	29x	30x	31x	32x
Turbo single	27x	28x	29x	30x	31x	32x	33x
Base Frequency	133 MHz	133 MHz	133 MHz	133 MHz	133 MHz	133 MHz	133 MHz
Turbo Boost	Yes	Yes	Yes	Yes	Yes	Yes	Yes
System Idle Power	85W	85W	85W	85W	85W	85W	86W
System Peak Power	263W	276W	280W	285W	290W	298W	322W
BIOS Vcore Increase	0mV	0mV	0mV	0mV	0mV	30mV	73mV
CPU-Z VT idle	0.938V	0.938V	0.938V	0.938V	0.938V	0.973V	1.020V
CPU-Z VT load	1.219V	1.242V	1.242V	1.242V	1.242V	1.266V	1.324V
PCH	1.81V	1.81V	1.81V	1.81V	1.81V	1.81V	1.81V
RAM	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V
Fritz chess benchmark	18231	18821	19508	20116	20784	21382	21931
Stable	Yes	Yes	Yes	Yes	Yes	Yes	Yes