What sort of temperature are we talking about for the liquid to turn to vapour? It's going to be very high imagine unless it's under a lot of pressure which it can't be with rubber tubing. Surely it's going to mean very high idle/light load temps? Being Noctua it's going to be stupidly expensive if it ever makes it to market.
It's other way around
Not under a lot of pressure
The lower you get the pressure the lower the
Boiling point of water becomes
Remove enough air/pressure and water will boil at room temperature
Some other liquids will boil much easier
I am just assuming they're using water in these
As its cheaper and no environmental issues disposing it
So either metal/plastic pipes as in the ice giant version
Or possibly rubber reinforced ones in the noctua
I have some here for cars its much stronger than regular watercooling stuff
But still relatively bendable/flexible
Remove air/pressure and the boiling point becomes lower
Not talking about removing to almost a vacuum
Because don't need it to boil at room temperature
Because the cpu is dumping heat/energy into it
What exact amount of heat/energy is required I have no idea
But you may possibly be correct at idle it may be less efficient
www.anandtech.com
