[SOLVED] How much does TDP increase with overclocking?

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xxscienceboyxx

xxscienceboyxx

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Nov 30, 2018
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Usually a i7 9700k needs around 95W TDP, according to Intel. So how much will the TDP level increase with overclocking? Will it increase dramatically, or very little?

Thanks :)
 
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TDP is not the maximum power the CPU may generate - there may be periods of time when the CPU dissipates more power than designed, in which case either the CPU temperature will rise closer to the maximum, or special CPU circuitry will activate and add idle cycles or reduce CPU frequency with the intent of reducing the amount of generated power.

TDP is usually 20% - 30% lower than the CPU Maximum Power Dissipation.

Maximum Power Dissipation is the maximum power dissipated by the CPU under the worst conditions - at the maximum core voltage, maximum temperature and maximum signal loading conditions. Maximum Power Dissipation indicates a component's maximum capability to transfer and conduct this power loss without overheating. Power...
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TechyInAZ

TechyInAZ

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Unfortunately TDP is not a very good representation of thermals in its current state. Even if you lock the 9700K to it's base frequency, the TDP will vary depending on the programs your using. Even at 100% load, one program will generate more heat than another. Not to mention Turbo boost and workloads with AVX.

With overclocking it's impossible to predict the maximum thermals your CPU will produce, since all CPUs overclock and overvolt differently.
 
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Calvin7

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TDP is not the maximum power the CPU may generate - there may be periods of time when the CPU dissipates more power than designed, in which case either the CPU temperature will rise closer to the maximum, or special CPU circuitry will activate and add idle cycles or reduce CPU frequency with the intent of reducing the amount of generated power.

TDP is usually 20% - 30% lower than the CPU Maximum Power Dissipation.

Maximum Power Dissipation is the maximum power dissipated by the CPU under the worst conditions - at the maximum core voltage, maximum temperature and maximum signal loading conditions. Maximum Power Dissipation indicates a component's maximum capability to transfer and conduct this power loss without overheating. Power dissipation is measured in Watts.
 
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Karadjgne

Karadjgne

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Question from xxscienceboyxx : "Overclocking 9700k, is water cooling needed?"







For a mediocre OC, sure, but nothing attempting beyond 5GHz on all cores. Have to take program usage into consideration with cooling, figure most games will run 50-70% of max heat ability. Something like games and streaming will definitely be 70%ish and full on cpu rendering will be closer to 100% heat ability. So if you will never render at high OC, a smaller cooler is ok. That Evga can handle upto @250w±. The larger 280/360mm clc's can handle @350w±.
 
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