17 Feb High Airflow Fans or Static Pressure Fans: Helping You Solve the Dilemma
For CPUs, there are two types of fans usually used: high airflow fans and static flow fans. Each one has its own pros and cons and these are things we will discuss below. If you are thinking of ramping up your system, then you might consider changing your fan depending on your need and how your system is set-up.
Both types, though, have fins or blades that were manufactured in a way that work at different speed rates (cubic feet per minute or CFM). There are also other characteristics to keep in mind when choosing between the two, as one fan might not have everything you are looking for. Take for example, a fan that cools at a high CFM but is loud. If you want better cooling performance, then you will have to deal with the noise.
Hopefully, the discussion about high airflow and static flow fans could help you decide.
High Airflow Fans
Just as the name suggests, fans of this kind enable a lot of air to circulate around your system at a fast rate. The air will first enter centrally to your system and will then spread out as it goes on its way. So as long as you don’t put anything on its way, then it should be able to cool your CPU at a high CPM. Its wide reach could cool your motherboard, your GPU, and even your CPU cooler. However, if there are any impediments, then its cooling capacity might be compromised. That is why the high airflow fan’s path must be unimpeded.
Placement and Performance
When it comes to performance, placement has a lot of bearing. For example, you cannot have your intake and exhaust too close to each other. Even when both of your fans are high-performing, they will not be able to work properly when they are in close proximity.
Size and Noise
High airflow fans come in all sizes. But, of course, no one size fits all when it comes to any kind of fan for CPUs. The smaller ones have to operate at a high CFM for maximum airflow. Because of that they tend to make a lot of noise and that is something that most gamers do not appreciate. Nobody wants to have their gaming pleasure disturbed by a loud fan just doing its job.
Larger fans, on the other hand, may be bulky but that only lets them to suck in air to your CPU at a faster rate. On top of that, they are not as loud as their smaller counterparts. In fact, they make little to no noise at all.
If you will be looking at specifications of fans, those that are below 40dB will be your quiet cooling companion while anything that is above 50dB could be your mortal enemy. Also, fans under this category are usually sized between 120 mm to 140 mm.
Static Pressure Fans
Unlike high airflow fans, static flow or static pressure fans have a more concentrated reach. Due to the nature of their design, the pressured air that passes through their blades go through the obstacle in front of them and fans outwards.
Placement and Performance
The great thing about this kind of fan though, is that it does what high airflow fans cannot. It penetrates obstacles, such as radiators. If you are using a water cooling setup for your system, that has got to come with a radiator. And since static pressure fans have a high resistance, they can go through such an impediment.
Size and Noise
Most fans under the static pressure category are available only at 120 mm. That means there is little to no choice at all when it comes to size. If we talk about their blades sizes, they tend to be wider with small gaps in between them.
As for the sound they produce, fortunately, there are two choices. There are those that were made specifically to be quiet and there are those that are focused on both high airflow and high static pressure. The latter one means that they will be much louder than the former, as they will be doing a lot of work.
Have you made your choice yet? Or are you still looking for more? Actually, there are hybrid designs available in the market that can account for both high airflow and high pressure. In fact, the other choice mentioned in the last section actually lean towards the hybrid design. Like static pressure fans, they have wide blades, but there would be bigger gaps in between them too. Additionally, the blades are more curved compared to the two standard fan designs.
Also, you do not have to limit yourself to just one type of fan. Again, it depends on where you want to put them and what purpose you have in mind for them and you can even mix-and-match these two types when you’re building or retrofitting your CPU!