Water vs air cooling

[RELAXDUDE]

Quick question. Between water and air cooling which of the two gives out more hot air into the room?

[RONOTHAN##]

Water cooling. It's more efficient at removing heat from the system, so therefore it's more efficient at heating the room.

[LIGISTX]

3 minutes ago, RELAXDUDE said:

Quick question. Between water and air cooling which of the two gives out more hot air into the room?

 

1 minute ago, RONOTHAN## said:

Water cooling. It's more efficient at removing heat from the system, so therefore it's more efficient at heating the room.

Uhhhh, no. 
 

So, thermodynamics is “simple” in this case. The CPU will create, say 200 watts of heat. Doesn’t matter how well the cooler does at actually moving that heat from CPU to the surrounding air, 200 watts of heat is going to be dissipated into the room. One of them is going to do a better job at actually moving that heat away from the CPU (usually water cooling), but the heat dumped into the room is the same. 

[An0maly_76]

Cooling is cooling. It's all about airflow and heat transfer. Heat transfer comes to down to flow (air or liquid) and cooling surface area. Heat is transferred to the air or liquid to be carried away elsewhere, in this scenario, out of the PC case.

 

If you're worried about air cooling being less efficient, don't. I am air-cooling a 12-core, 24-thread Ryzen 9 5900X (AM4 Zen3) with a Scythe Mugen 5 with its own 120mm fan, supplemented by six 120mm fans running a custom fan curve on an iCUE Commander XT with special sauce, on a sesame seed bun. I might add that my case only has 34 square inches of intake area. So while liquid cooling is cool to look at, it's not necessary, and it can be quite high maintenance once it's run awhile. Even Linus himself has said that liquid cooling is cool if you prefer tinkering with your PC as opposed to actually using it.

 

https://www.youtube.com/watch?v=23vjWtUpItk

 

Also, you might want to check out this write-up I put together busting the myths about air-cooling...

 

https://linustechtips.com/topic/1424716-air-cooling-myths-and-setup-tips-for-the-novice-performance-gaming-builder/

 

Also, in most scenarios, your cooing airflow should be like so. Some cases are designed to be more efficient with a different flow pattern, but typically, this is how you should do it.

 

Edited June 9, 2022 by An0maly_76
Revised, more info

[Sjaakie]

@LIGISTXUnless the watercooling is better at dissipating the heat, letting the cpu to run at a higher wattage / unthrottled thus giving out more heat

 

But indeed if the cpu runs at full force on the air cooler anyway it doesnt matter.

 

 

[emosun]

24 minutes ago, RELAXDUDE said:

Quick question. Between water and air cooling which of the two gives out more hot air into the room?

neither thanks to science

[emosun]

1 minute ago, Sjaakie said:

Unless the watercooling is better at dissipating the heat, letting the cpu to run at a higher wattage / unthrottled thus giving out more heat

you're talking about the heat generated not the heat dissipated

If I lit the entire room on fire I'm sure there'd be more heat as well but that has nothing to do with dissipation

[Dogzilla07]

7 hours ago, Sjaakie said:

Unless the watercooling is better at dissipating the heat, letting the cpu to run at a higher wattage / unthrottled thus giving out more heat

This, @RELAXDUDE xD, the more efficient* the cooling system, the hotter the room will be on stock settings xD (with all the new Smart, auto-everything CPUs).

[NorKris]

If watercooling gives the G/Cpu more time to boost/stay at a higher ghz. answer is watercooling. 
(and pump + more fans, not that this is much to talk about)

if Boost /watt on boot systems are the same. answer is: the same 

[jaslion]

On 6/10/2022 at 12:21 AM, RONOTHAN## said:

Water cooling. It's more efficient at removing heat from the system, so therefore it's more efficient at heating the room.

Not true.

 

The heatsource is the same. So the heatoutput will be identical and both will heat up the room pretty much equally so long as the cpu does not change in thermal output.