120mm VS 140mm Fans

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120mm VS 140mm Fans

Those people who are interested in building their PC have these two fan options to choose from. Of course, each of them can provide different features and advantages. At the same time, high temperatures or overheating a processor or PC is one of the worst drawbacks that any computer user faces.

That is why we have set ourselves the task of comparing 120mm vs 140mm fans. Below we will talk about each of them to choose the most suitable option according to their activities on each computer. 

120mm PC Case Fans

One of the main characteristics relates to the airflow that a 120mm fan can provide. Not all fans can provide the same airflow, as this depends a lot on the manufacturer. Anyway, there are differences in the average level of this type of fan with the 140 mm fan. 

It is possible to expect up to 90 cfm or less, which refers to airflow. In other words, it means that this fan can provide a low level of airflow. This can be suitable and adaptable to all computers that do not perform intensive or heavy-duty tasks or activities. These types of activities do not include high requirement games or design software.

The airflow we can get from these fans is related to the fan’s speed or the number of rotations per minute. In a 120mm fan, we can find a speed that, on average, is usually 1200 revolutions per minute. Once again, we can mention that this is an acceptable speed for a computer that performs light tasks.

We can find 120mm fans that offer a low noise level due to their size on many occasions. The DB levels generated by this type of fan are usually related to the specific design of each manufacturer. We can even find many fans that work with software to optimize this aspect.

The fan’s software allows the user to adapt the operation according to the needs or the temperature of the computer. Sometimes, the fan does not generate any noise level when it is unnecessary to turn on the operation. A 120mm fan that is of decent quality can generate approximately 26 DB.

When we analyze the prices of each fan, we also find a wide variety of options depending on the features included by each manufacturer. 120mm fans may require a budget of less than $20, and in some instances, the cost needed can exceed $50 for the highest quality.

Read More: Best CPU Coolers for Ryzen 7 3700x

140mm PC Case Fans

Some computers may generate too much temperature due to the intensity of some of the activities performed by the user. 140mm fans are usually better suited for computers that perform intermediate or intense activities. That is why this type of fan usually provides a high level of airflow.

As we have mentioned, this can happen with the most modern and high requirement games that require an excellent performance. This same situation is often generated with design software or even with a computer used many hours a day. For this, 140mm fans can deal with high temperatures in a better way.

At the same time, this is related to the speed of each fan which is at an average of 1400 revolutions per minute. Some can also provide a speed of 1500 to 2000, or even more revolutions per minute. The higher speed often means a higher level of airflow to protect the processor and all vulnerable parts of a computer.

The noise level is also related to the specific design and features built into each 140 mm fan. We can find different noise levels generated by these fans that easily exceed 30 DB. It is even possible to find other fans that generate too much noise, according to the opinion of some users.

In any case, many manufacturers usually incorporate some specialized software to control the operation of each fan. This allows the fan to operate at specific times according to the actual needs of the processor. When this happens, it also reduces the noise level generated by the fan.

When it comes to finding a 140mm fan with a low price, the budget needed is usually $20. So we can also find other fans of higher quality that exceed $50 or even $60 on many occasions. This is logical because a 140mm fan can provide more capacity for the computer and has more technology, depending on each manufacturer.

120mm VS 140mm Fan Comparison

Comparing each of these fans allows us a better perspective when choosing the final option. Each of these fans is specially designed to offer functionality and advantages, depending on the activities of each user. 

1. Airflow

As we have mentioned, the 140mm fan can provide more excellent airflow than the 120mm fan. That is why the 140mm option is better suited for computers that perform a heavy workload or users who wish to overclock. 

2. Spinning Speed

In general, we find a higher speed in 140mm fans. However, this can vary as the maximum speed of a 120mm fan is up to 1200 RPM, and the minimum speed of a 140mm fan could be 1000 RPM or less. Anyway, a 140mm fan usually offers a higher speed when we choose a suitable model.

3. Noise Level (dB)

140mm fans usually make more noise than 120mm fans. The latter option usually includes quiet or ultra-quiet operation. Some may offer 20 decibels or less in operation when it comes to a 120mm fan.

4. Price

When shopping for a 120mm fan with a 140mm fan of similar quality and features, the 120mm fan is cheaper. A 120mm fan is in the $10 to $30 range on most occasions. A 140mm fan is usually found in the $15 or $20 to $35 range.

Final Verdict – The Winner:

For users who are interested in excellent functionality, the winner will be the 140 mm fan. This fan can cope with computers that perform a heavy workload due to the high temperature level it generates.

For users who want silence and have a computer for light activities, the winner will be the 120 mm fan. This fan is more than sufficient for light tasks, such as those performed in an office. The quiet operation is combined with an affordable cost, making the 120mm fan a more attractive option. 

Saqib Ali is a Computer Science Graduate and passionate about Technology. He loves to write about gadgets, computer devices, etc.

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