How could the CPU coolers have the same TDP even though the other one is bigger?
https://www.alternate.at/Noctua/NH-U14S-TR4-SP3-CPU-K%C3%BChler/html/product/1376000
The be quiet has 120 mm fans, but the part is longer and not as slim as the Noctua
https://www.alternate.at/be-quiet/Dark-Rock-Pro-4-CPU-K%C3%BChler/html/product/1441526
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Noctua itself does not use TCP, they have their own system called NSPR
Apart from that… If you compare a cooler for AMD's Threadripper system with a universal cooler for AMD AM4/5 and Intel's socket 1150 and above
Get an NH-D15 (noctua.at) and you'll beat any CPU currently on the market
And one more thing: especially with Noctua, you don't just replace the fans on the CPU cooler, because they are precisely matched to the cooler or vice versa
And if you want bling on your CPU cooler, then don't look at Noctua and, as far as I know, not at beQuiet either. There are other companies that specialize in that.
No, no, I wouldn't swap with Noctua either. I'm talking about the ENDORFY that I put the Noctua fan on.
Why would that be? Then you've spent over €80… then you might as well just go for the Noctua NH-U12S CPU cooler retail (alternate.at).
How much heat a CPU cooler can dissipate depends primarily on its surface and, of course, on how effectively the heat energy is distributed across it.
With 2 fans, the Be QuietDark Rock Pro 4 is able to dissipate 250W of waste heat
The next most powerful would be the EKL Alpenföhn Olymp, which generates up to 340 watts of waste heat with 2 fans.
The TDP of a cooler is not specified and there is no standard here.
For this reason, Noctua no longer uses the TDP because it cannot be used across manufacturers and does not say anything about the final temperature with the corresponding CPU.
For example, if I make a small cooler that keeps a 150W CPU at below 95°C, and another makes a 150W cooler that reaches 80°C, the second cooler is better. However, I can still specify a 150W TDP on my cooler, just like the other manufacturer.
Therefore, you can only use such information to see which cooler from a single manufacturer is the best, and even then it doesn't really tell you anything about your CPU temperatures.
You can read more here:
https://noctua.at/de/noctua-standardized-performance-rating
For this reason, Noctua no longer uses the TDP because it cannot be used across manufacturers and does not say anything about the final temperature with the corresponding CPU.
That's correct, but it's also pointless to hide it. It would be better to specify the maximum heat dissipation, which many manufacturers of air coolers and AIO models prefer to keep quiet about. This only confuses you as to what to buy if the information you need isn't available.
For example, if I make a small cooler that keeps a 150W CPU at below 95°C, and another makes a 150W cooler that reaches 80°C, the second cooler is better. However, I can still specify a 150W TDP on my cooler, just like the other manufacturer.
That's not true.
If I have a cooler that generates 150W of waste heat, I also need to specify a reference point. For example, a CPU with a current continuous load of 105 watts, where the cooler maintains this at a temperature of XX°C CONSTANTLY (24/7), taking into account factors such as airflow, the number of fans used, whether it's in a closed, mesh, or open case, and the ambient or room temperature. The lower the temperature needs to be, the larger the cooler needs to be. This applies to aluminum/copper solutions.
In the server sector, only pure copper coolers have been used for years, rather than aluminum/copper or solid aluminum. It is known that the thermal conductivity of copper is better than aluminum. A cooler made of solid copper, such as the Be Quiet Dark Rock Pro 4, would be physically and mathematically capable of dissipating up to 400 watts of waste heat. Of course, in terms of weight, it would easily fall into the 1.5 kg class. But history has shown that something like this has existed before. See the SKL 900U or SLK 900A coolers, these were made of solid copper.
https://www.hardware-mag.de/artikel/kuehler_luefter/thermalrights_slk_900-u_unter_der_lupe/2/
What I miss is that the manufacturers should finally stop blinding people with the aluminum/copper crap and throw real coolers onto the market.
So far I can only find really good coolers on the Chinese market, not the EU market, and also the models made of solid copper that we cannot get in the EU (currently).
Well, if the information is practically useless anyway, it doesn't really make sense. In this case, one would have to adhere to a certain standard across manufacturers to ensure that models are comparable.
A specification of a heat transfer resistance at a defined power in an open frame structure, eg
True, but on 99% of all sales pages, this isn't stated, and I personally haven't found any information about how exactly this TDP was determined for the Dark Rock Pro, for example. Without a measurement setup, this statement is meaningless, as you wrote.
My example was purely based on the TDP specification. I deliberately pushed the reference point into the background because that's how marketing works.
Yes and no. The whole thing is a bit more complex because it's highly nonlinear.
For example, two coolers can be almost identical up to 90W of continuous power, while one of them gets extremely hot at 150W. The reason is that heat pipes, like Peltier elements, have a saturation heat flux; when this is reached, the thermal conductivity decreases dramatically.
Yes, solid copper of course has an advantage over aluminum. Copper is also logical.