3x120 vs 2x140 fans However the airflow amount of the 140 mm fan is only 8 4 CFM higher than 120 For 2 140 fans the airflow will be 2 x 50 2 100 4 CFM Whereas the airflow amount for 3 120 fans will be 3 x 41 8 125 4 CFM So practically 3 120 fans are able to push more air than 2 140 fans 1
Was planning on upgrading my case and giving my old one and fans to my father and was planning on picking up some noctua fans with the case and wanted to know if 2 140mm would be better than 3 120mm fans in the front GuiltySpark Member ask me about bottlenecks 8 4k 370 Posted May 13 2021 10 Sep 7 2019 1 Hi I want to buy a Phanteks P600s for my first PC build and find it can mount either 3x120mm fans or 2x140mm fans on the top So which one has a better performance My
3x120 vs 2x140 fans
3x120 vs 2x140 fans
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In the end size usually indicates decent CFM and lower noise potentially so 2x140mm may move a little less than 3x120mm however the level of noise 3x120mm puts out is a much higher delta between them than the CFM performance between the two 3 x 3 14 x 120 2 2 3 14 x 30 2 2 31792 5 mm 2 of useable fan area 2 x 140mm fan setup 2 x 3 14 x 140 2 2 3 14 x 30 2 2 29359 mm 2 of useable fan area 31792 5 29359 29359 is an 8 improvement which is very small
Mar 14 2021 IMO 140mm would be better They should be a little quieter as well as move a little more air if ran at the same rpm as the 120s They may not get as high as 120mm in regards to Though the difference in airflow is small the 2x140mm fans will deliver slightly more air into the case compared to 3x120mm fans while being quieter generally though that last one may depend on what fans you get If you re looking for any recommendations for fans I can give you some if you need them 5 Reply
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Depending on the fan make model the 3x120mm fans will win 9 times out of 10 vs 2x140mm it ll just be a bit more expensive you also need to factor the actual grills space in your case The slot may support a 140mm fan but 15 of the overall fan might be blocked by metal while the smaller 120mm fan has 0 blockage Keep in mind that the actual area covered by 2x 140 mm fans is not far from 3x 120 mm fans because you re looking at length x width so the dimension is squared Obviously you need to account for the fan hub the fact that the actual area is more like circles or a doughnut than a square etc but anyway it comes out relatively similarly
3x 120 mm fans covers a larger area then 140mm length wise 3x120mm fans will have direct air flow on top of more surface area then the 140mm fans Everything else created equal the 3x120mm fans will cool a build better 9 10 1 Jun 11 2019 I am waiting for a Define R6 After reading on this forum I have decided to replace the stock fans So now I am wondering if I should go for 3x120mm or 2x140mm in front and if it is needed to add fans to top bottom and back Also what fans is recommended to use
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3x120 vs 2x140 fans - In the end size usually indicates decent CFM and lower noise potentially so 2x140mm may move a little less than 3x120mm however the level of noise 3x120mm puts out is a much higher delta between them than the CFM performance between the two