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TDP Readings

post #1 of 3
Thread Starter 
Might be a stupid question but i noticed in cpuid HW Monitor its reads the cpu tdp at 99.37w for my proc, yet core temp 1.0 reads it at 94.7w, which is more likely to be the accurate reading?
Alienware x51 r3
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Alienware x51 r3
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i3 6100 3.7GHz Dell 026CD3 ASUS GTX 750 Ti Strix 2GB Hynix DDR4 2133 8GB 
Hard DriveHard DriveOptical DriveOS
Kingston HyperX Fury 120GB Samsung EVO 250GB DVD RW Windows 10 Home 64Bit 
MonitorKeyboardPowerCase
Dell UltraSharp u2715h 27" 1440p IPS Roccat Isku FX 180w Power Brick Alienware x51 
MouseMouse PadAudioAudio
Logitech G502 SteelSeries Qck+ Mini Dell AC511 Sound Bar SteelSeries Siberia RAW Prism 
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post #2 of 3
they are both calculated numbers that are just estimates. there is no way to actually measure the power draw of your processor.

you can use a power meter to measure the total power draw of a system though.
post #3 of 3
Quote:
Originally Posted by kevingreenbmx;15616585 
they are both calculated numbers that are just estimates. there is no way to actually measure the power draw of your processor.

you can use a power meter to measure the total power draw of a system though.

^This

I actually use a P4460 Kill A Watt EZ . Works well for total power draw of a system.

A note on TDP,

Actual power consumption (ACP: Average CPU power) is always much less than TDP (Thermal Design Power). TDP rating merely relates to maximum amount of power the cooling system is required to dissipate, it's designed by Intel so they can bundle the correct heatsink with a CPU. Whereas ACP was designed by AMD for servers to monitor actual power consumption. TDP is not the actual maximum power of the processor either.
Edited by ALUCARDVPR - 11/8/11 at 8:14pm
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