CPU power (wattage) usage?

[ViktorParchev]

Hi guys,

So, if my CPU's TDP IS 65W and the power draw is 100W, does that mean it constantly uses 100W ?

I mean, if in task manager, the CPU has 5% utilization, does that mean it uses at the giving moment about 5 watts?

 

Thanks for the help!

[seban]

4 minutes ago, ViktorParchev said:

Hi guys,

So, if my CPU's TDP IS 65W and the power draw is 100W, does that mean it constantly uses 100W ?

I mean, if in task manager, the CPU has 5% utilization, does that mean it uses at the giving moment about 5 watts?

 

Thanks for the help!

If you want accurate numbers about wattage on your CPU, you can just download this program https://www.cpuid.com/softwares/hwmonitor.html

 

[SupaKomputa]

TDP usually to measure max heat generated from the cpu, not the power usage.

65w tdp cpu can use up to 120w of power.

No it is not always use 100w, when idle usually around 20-30w, and if you use low power profile, it only use 10w.

Depends on the load.

[ViktorParchev]

11 minutes ago, Seban said:

If you want accurate numbers about wattage on your CPU, you can just download this program https://www.cpuid.com/softwares/hwmonitor.html

 

So, this means at this given moment my CPU uses 33W?

[IkeaGnome]

No, that means when you took that SS it was using 32.82. The lowest reported wattage was 31.32 and the highest was 52.04

[ViktorParchev]

22 minutes ago, Seban said:

If you want accurate numbers about wattage on your CPU, you can just download this program https://www.cpuid.com/softwares/hwmonitor.html

 

Thanks for this software, mate! Really, really helped me!

[ViktorParchev]

15 minutes ago, SupaKomputa said:

TDP usually to measure max heat generated from the cpu, not the power usage.

65w tdp cpu can use up to 120w of power.

No it is not always use 100w, when idle usually around 20-30w, and if you use low power profile, it only use 10w.

Depends on the load.

Thank you, sir!

[ViktorParchev]

2 minutes ago, IkeaGnome said:

No, that means when you took that SS it was using 32.82. The lowest reported wattage was 31.32 and the highest was 52.04

Thank you, sir!

[Quackers101]

maybe, I don't think it as accurate as tools that you plug inbetween the wire connections to get a reading.

but I think they maybe did a video if it was when Nvidia released their testing tools?

Else it might be right that its around 33 W for the CPU, with those other numbers showing min and max.

[mariushm]

The processor is constantly turning cores on and off or reducing the frequency of individual cores, if they're not used or the cores have low usage.

 

This means the power consumption of a processor varies all the time, from 5-10 watts while in Windows typing something in Word or on this forum to 100w or more when doing something very cpu intensive.

The TDP is a way of expressing how much heat a cooler must be able to dissipate... the TDP 65w says the heatsink and fan must be so configured so that they can dissipate 65w worth of heat.

The processor can consume more for short periods of time, because it takes some time for the heatsink to rise up from warm to hot and decrease its cooling efficiency so the processor can consume 100w or something like that and if the cooler can't keep up, it can reduce frequency of some cores or even turn off cores to save power and therefore produce less heat.

[Quackers101]

You can say that every config will have a minimum idle and a max load, to undervolt or overclock.

And it's not specificly stated when buying, other than general stats.

[Mister Woof]

Best way to test is to use a kilowatt meter to test your actual usage