TDP? Wtf

[Zeke_]

Someone explain what TDP is to me please lol.

[Guest]

I think it is to do with heat production from the die

[Zeke_]

Just now, FJRiley said:

I think it is to do with heat production from the die

What's the die?

[Goldensapling]

[Deleted]

Turns out I'm retarded

[Sir Asvald]

1 minute ago, Zeke_ said:

What's the die?

 

[Goldensapling]

1 minute ago, Zeke_ said:

What's the die?

A die on a CPU is a wafer thing that has circuits which make your computer do shit

[jj9987]

2 minutes ago, Goldensapling said:

TDP = Thermal Design Power

It's basically the amount of power a component uses.

For example, a 95w TDP CPU would draw ~95w from your PSU while under load.

Wrong.

 

The thermal design power (TDP) is the maximum amount of heat that is generated by a computer component, be that CPU or GPU. That is the amount of watts that the cooling system must dissipate.

 

TDP does not directly mean power consumption by the chip.

[Goldensapling]

1 minute ago, jj9987 said:

Wrong.

 

The thermal design power (TDP) is the maximum amount of heat that is generated by a computer component, be that CPU or GPU. That is the amount of watts that the cooling system must dissipate.

 

TDP does not directly relate to power consumption.

Well shit, looks like I'm fake news now :^(

[Windows7ge]

This isn't a very intelligent explanation but TDP or Thermal Design Power is a measurement of the max amount of Watts a chip is designed to use. Like 80W TDP chips, 95W, 130W Etc. I believe it's just a measurement of how much power a particular chip uses. Things get interesting when you overclock though. Pushing a 3930K which is a 130W TDP chip at stock I pushed it to somewhere around 165~170W getting it up to 4.4GHz.

 

As FJRiley mentioned. The higher the TDP (More Watts) means more heat is produced. So when overclocking and increasing CPU voltage in the BIOS the TDP increases. Which enables you to push for higher overclocks and in turn produces more heat.

 

In short. TDP is the measurement of how many Watts a CPU will use at stock speed under load. Sometimes CPU coolers will label on their units what the max Watt TDP is they can handle. This is because the higher the number the more heat is produced and the more heat has to be dissipated.

[Mira Yurizaki]

TDP is not a direct measure of electrical power consumption. Energy in physics can take on any form it wants, because at the end of the day, it's doing work. So heat energy and electrical energy, over time, are both measured in watts because they both do work. But TDP is not measuring electrical power consumption.

 

TDP is the amount of heat energy (energy over time is power) that a cooler must be able to dissipate in order for the processor being cooled to remain at a safe temperature for a given workload. It's a metric that can be, for the most part, ignored by most of the masses. You only need to worry about TDP if you're buying a third party cooler.

 

But yes, there is a general relationship between electrical power consumption and TDP, but again, they are not directly related.

 

There. I can breath easily now.

[Zeke_]

12 minutes ago, Abdul201588 said:

 

Linus is a God

[bgibbz]

17 minutes ago, Windows7ge said:

In short. TDP is the measurement of how many Watts a CPU will use at stock speed under load. Sometimes CPU coolers will label on their units what the max Watt TDP is they can handle. This is because the higher the number the more heat is produced and the more heat has to be dissipated.

Nope. TDP (THERMAL Design Power) is a measure of the thermal output in watts. A chip with a 100 watt TDP would need to have 100 watts of heat disapated.  It really has nothing to do with power consumption at all, at least not directly. Coolers label TDP because it basically says "this cooler can dissipate X amount of heat"

 

https://en.wikipedia.org/wiki/Thermal_design_power

[Windows7ge]

1 hour ago, bgibbz said:

Nope. TDP (THERMAL Design Power) is a measure of the thermal output in watts. A chip with a 100 watt TDP would need to have 100 watts of heat disapated.  It really has nothing to do with power consumption at all, at least not directly. Coolers label TDP because it basically says "this cooler can dissipate X amount of heat"

 

https://en.wikipedia.org/wiki/Thermal_design_power

Watching the Linus video someone linked in this thread it seems half the information i provided was wrong and the other half was partially accurate.