CPU TDP definition as of Nov-2021??

[Deleted member 185158]

Hi,

Just wandering, how does AMD and Intel define "TDP" for CPUs in late 2021?

I understand TDP has nothing to do with actual power consumption. I also understand TDP is in reference to heat output. Why its a necessary measurement, beats me (cooler related?)!! I have a loose take on the subject hence looking for some clarification.

Is it even relevant as some posts I've read suggest it's just a baseline indicator and doesn't really have any significant meaning other than slipping on a cooler with the same/higher TDP rating?

Thermal Design Point.
This is an average number the manufacturer uses to decide a cooler.

The power consumption by wattage is then converted to a BTU rating.

So if an Intel chip is pulling 300w, you can convert that to BTU which would be 1024 BTU/hr.

The number given by the manufacturer is an average. So AMD 105w chip will average 105w through it's life span, or an average of 358 BTU/hr.

The TDP number is not a direct reflection of your usage and also by default has a 5% swing.

Hope this helps!

 

[Bill_Bright]

Depends on engineer. Some want to make the best they can, some want something simple, some want to pinch pennies, some are just happy to have a decent job.

And nothing there has anything to do with making a "profit" - my point all along. You can keep arguing all you want. I don't care. Marketing weenies, company owners, share holders, executives - those people care about "profits". Engineers don't. Are there exceptions? Probably. But exceptions don't make the rule, nor do they render moot the whole point.

Thermal Design Point.

This illustrates my point - or that originally raised by Mussels Friday in post #9.

It's whatever they want it to mean, at the time.

TDP means Thermal Design "Power". No wait! It means Thermal Design "Parameter". No, it means... .

The How-To Geek says it best,

TDP definitions are like opinions—everybody’s got one.

 

[Deleted member 185158]

And nothing there has anything to do with making a "profit" - my point all along. You can keep arguing all you want. I don't care. Marketing weenies, company owners, share holders, executives - those people care about "profits". Engineers don't. Are there exceptions? Probably. But exceptions don't make the rule, nor do they render moot the whole point.

This illustrates my point - or that originally raised by Mussels Friday in post #9.


TDP means Thermal Design "Power". No wait! It means Thermal Design "Parameter". No, it means... .

The How-To Geek says it best,

OK, I didn't quote you for the very reason you take something simple and make it over-complicated.

THERMAL is the word I'll be concentrating on today. You can do whatever with the rest another human used for describing movement of therms. Just so happens to look like an electrical wattage.

If you'd like to talk about the movement of BTU and the time it takes to go from place A to place B even if there's A.1 A.2 in between.... It's still not an electrical wattage description, I'd be happy to converse.

Other than that, I don't have it in me to argue anything behind the THERMAL in TDP, which means IDGAF about the D and P portions.