[SOLVED] Which type of CPU Cooler is better?

[wm3797]

About these two coolers, respectively, Alpine 12 & Alpine CO, one uses fluid dynamic bearing while the other uses dual ball bearing. Which one is better ?

 

[Colif]

fluid dynamic bearing

These are better than Dual ball bearing, they are quieter and last longer
https://www.gamersnexus.net/guides/779-computer-case-fan-bearing-differences

notices real question was about coolers, not fans

main difference seems to be the fans, do you want quiet or constant running?
Alpine 12 is likely quieter as its got the fluid dynamic fan
Alpine 12 CO has dual ball bearing, is a little louder.

TDP on the CO is 5watts higher than the base model
Alpine 12 - 95watts
Alpine 12 CO - 100watts

 

[wm3797]

These are better than Dual ball bearing, they are quieter and last longer
https://www.gamersnexus.net/guides/779-computer-case-fan-bearing-differences

notices real question was about coolers, not fans

main difference seems to be the fans, do you want quiet or constant running?
Alpine 12 is likely quieter as its got the fluid dynamic fan
Alpine 12 CO has dual ball bearing, is a little louder.

TDP on the CO is 5watts higher than the base model
Alpine 12 - 95watts
Alpine 12 CO - 100watts

Hi, which one would cool the cpu better, faster or more efficiently?

 

[Colif]

There isn't very much difference between them. They both use the same heat sink. the CO is a little taller the difference is mainly in height of fan assembly. they both appear to use same fan design.

CO means Continuous Operation so if you going to run PC all time, it would be one to choose. Otherwise the 12 is fine, its likely just as cool as the other. There is a comparison of both but its on a German site.

basically the same, the only difference is use case
12 is good for most people
CO (Continuous Operation) is for heavy duty use
LP (Low Profile) is for small cases
Passive - 4th type has no fan at all, and is also chunkier because of it

 

[wm3797]

There isn't very much difference between them. They both use the same heat sink. the CO is a little taller the difference is mainly in height of fan assembly. they both appear to use same fan design.

CO means Continuous Operation so if you going to run PC all time, it would be one to choose. Otherwise the 12 is fine, its likely just as cool as the other. There is a comparison of both but its on a German site.

basically the same, the only difference is use case
12 is good for most people
CO is for heavy duty use
LP is for small cases
4th type has no fan at all

I read that for the fluid dynamic bearing, the fluid leaks out. Is that true?

 

[Colif]

They are safe to use. The term fluid is usually referred to an oil based lubricant, which is usually non conductive and in such small amount that it'll hardly be called a leak. Regardless of bearing type, there will be some form of lubricant used. Even ball bearings need grease to run smoothly.

Fluid dynamic coolers safe to use or can they leak?

I am seeing a lot of heatsink that have "Hydro" or "Fluid" dynamic bearing in them. Are these safe to use or should I stick to ball bearing? I am thinking maybe the fluid inside the Hydro will eventually leak and damage the surroundings, but then again, its getting difficult to find a ball...

forums.anandtech.com

price difference is so small that if you really worried, get a CO but they can leak too. I think only fans that can't leak are Corsair ML fans since they use Maglev and no bearings. Alas, they are only case fans.