Blower vs open air

[tdmaster]

Is a blower fan worse than an open air gpu design sound and performance wise? I'm wondering cause I want get a 1070ti

 

[ravenjedmanicdao]

Yes they generally are. They work much harder since they only exhaust air out in one exit, which is at the rear, therefore they tend to emit more noise. And since there is only one exit, the temperatures tend to accumulate faster than the blower fan can take it out. However, they are great if you are building a low profile PC, since open air coolers exhaust the hot air out of the case, to be then exhausted by your case's exhaust fans. In most cases, an open air cooler is generally preferred.

 

[geofelt]

I actually like blower cards better.
They send the hot gpu air directly out the back of the case.
With fan type coolers, you depend on case cooling to get rid of the heated air.
Fan type coolers do well in open test beds, and probably in a case also if you have good case intake airflow.
Blower fans are smaller, typically 92mm so they need to run fast and will generate noise when the gpu is pushed hard. They are used in reference designs and are often cheaper.

Does it matter that much??
Not really.

From a performance point of view, the degree of factory overclock is what matters.

 

[lumineZ]

Small form factor build with limited airflow in the case = Blower style card.
Normal to big form factor build with enough airflow = Open air style card.