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Intel Core i7-12700K Review: Taking the Shine Off Core i9

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Intel Alder Lake
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Intel Alder Lake Core i7-12700K Power Consumption and Efficiency

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Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Intel Core i7-12700K Power Consumption

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Yes, the Intel Alder Lake chips still suck more power than AMD's Ryzen 5000 series chips, but pairing the Intel 7 process with the hybrid architecture brings big improvements, particularly in threaded work.

As we can see, the Alder Lake chips consume far less power than the Rocket Lake chips. Overall, Intel has reduced its power consumption from meme-worthy to an acceptable level. Besides, Alder Lake is much faster than the previous-gen chips, earning it some forgiveness.

As you can see in our renders-per-day measurements, the Core i7-12700K can be nearly twice as efficient as the 11700K, which is commendable. This lower power consumption results in reduced cooling requirements, too. 

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Core i7-12700K Power Efficiency

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Core i7-12700K Power Efficiency

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Core i7-12700K Power Efficiency

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Core i7-12700K Power Efficiency

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Here we take a slightly different look at power consumption by calculating the cumulative energy required to perform Blender and x264 and x265 HandBrake workloads, respectively. We plot this 'task energy' value in Kilojoules on the left side of the chart. 

These workloads are comprised of a fixed amount of work, so we can plot the task energy against the time required to finish the job (bottom axis), thus generating a really useful power chart. 

Bear in mind that faster compute times, and lower task energy requirements, are ideal. That means processors that fall the closest to the bottom left corner of the chart are best. 

As you can see, Intel's chips have descended from the undesirable upper right of the chart down to the lower left hand, nearly matching AMD's chips in power consumption while being faster. The gap between the 11700K and the 1200K is remarkable: That's an outstanding improvement after six years of power-guzzling 14nm chips. 

Paul Alcorn is the Deputy Managing Editor for Tom's Hardware US. He writes news and reviews on CPUs, storage and enterprise hardware.