120mm vs 140mm fan?

[appleshaq]

Hi there, I am building a new computer and have a decision on fans for my case. I have narrowed it down to these two options.

http://www.pccasegear.com/index.php?main_page=product_info&cPath=9_510&products_id=6170 120mm

http://www.pccasegear.com/index.php?main_page=product_info&cPath=9_598&products_id=16508 140mm

I can install either of these fans sizes in my case and on my CPU cooler.

This is my case: http://www.pccasegear.com/index.php?main_page=product_info&products_id=17053

And this is my CPU cooler: http://www.pccasegear.com/index.php?main_page=product_info&products_id=17341

They can in install either 120mm or 140mm fans. I will be buying 9 fans, 2 for my CPU cooler and 7 for the case (3 for the top, 2 for the front, 1 for the bottom and 1 for the back.

I think that I should go with the 120mm because it pushes almost 15CFM more than the 140mm at the same noise level.

Could you please help me on this one!

Thanks!

 

[appleshaq]

It seems that no one can answer this. Would the bigger 140mm be better for airflow and cooling or the higher CFM 120mm fan?

Thanks!

 

[rolli59]

Higher CFM means more airflow! More cooling comes with more airflow!
The only thing the 140mm has is that it rotates slower and therefore is slightly more quiet!

 

[appleshaq]

So the 120mm it is?

Thanks!

 

[appleshaq]

Would it be a better idea to have a 140mm fan for the CPU cooler because it will cool more of the surface area? Or is it still better to get a 120mm fan that pushes ~ 15 CFM more?

Thanks and I really need an answer since I am buying soon.

 

[rolli59]

The CFM is what provides the cooling so the 120mm is going to be the better.

 

[DelroyMonjo]

JUst what are you building that you need 7 case fans for? Has Nvidia come out with nuclear powered GPU's?

 

[appleshaq]

Well the case I am getting supports 3 top fans, 2 front fans, 1 back fan and 1 bottom fan. It also supports 1 180mm side fan. I was just curious what fan would be better. Thanks! I thibk ill go with the 120mm fan.

 

[davcon]

http://www.pccasegear.com/index.php?main_page=product_info&cPath=9_202&products_id=11491

 

[appleshaq]

Whats the point of the link? It isn't even better than the fans I suggested. It is only capable of 76CFM vs a fan that spins 100 RPM slower and 34CFM more. I don't care about noise.

Thanks for the answers and i think the scythe 1900 RPM fan is the best on the site.

 

[appleshaq]

Best answer selected by appleshaq.