Power consumption is still an issue for AMD, as we found the FX-8150 chugged 252 watts under full load. Although that's 5% less than the i7-920, it was 52% (86 watts) more than the i7-2600K. Idle consumption wasn't much better. At 100 watts, the FX-8150 gobbled 32% more power (24 watts) than Intel's enthusiast chip.
The FX-6100 was slightly better than the Phenom II X6 1100T with consumption, though we should stress only slightly. It's a similar situation when comparing the FX-4170 and Phenom II X4 980, but there is an improvement nonetheless.
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