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To what extent do 120 mm and 140 mm fans differ

When putting together a computer, the discussion between 140 mm & 120 mm fans may get heated. Many individuals are on both sides of the issue, and it might be hard to offer a uniform response.

When using case cooling fans, use caution.

Everything you need to know to make a wise choice the first time around is included in this manual. The size, power consumption, noise level, performance, and cost of each fan will be evaluated.

Learn all about 120 mm fans right here!

Fans with a 120 mm diameter are the most widely used size. Even though there are bigger fans available, this size remains the standard for laptops and desktop PCs. For normal computer use, a 120 mm input fan is sufficient, and for most gamers. A 120 mm fan is more than enough to keep the interior of the case cool. Visit to find more about the best fan for your computer.

In comparison to standard fan sizes, the 120 mm installation is rather compact. Excellent for use in low-profile applications or when working with other, smaller components. However, there are no methods of refrigeration available.

The dimensions of a standard 120 mm fan are 120 mm by 120 mm by 25 mm. Some fans, especially those with extra RGB lights, may be significantly bigger than others.

Details about 140-millimeter-diameter fans

In spite of their greater dimensions, 140 mm fans are seeing increased demand from consumers. The 140 mm computer fan is a favorite among gamers & professionals who utilize intensive applications. Such as editors and architects.

The dimensions of the 140 mm fan are 140 mm by 140 mm by 25 mm. Still, there are certain fans that are a tad bigger, especially if they feature extra RGB lights. Fans with a 140 mm diameter are bulkier and heavier since they have more lights.

So what does it matter how big you are?

Before you go out and buy a fan for your setup, you need to measure the interior of your case. The fan needs to be able to fit within the casing. Fan sizes as little as 80 mm may be used in most modern cases.

The maximum length for some cases is 200 mm, while others have a far more modest 40 mm limit. To assist you select the proper size, the case should come with sizing instructions. The diameter of the fan may also be determined by inspecting the spacing of its mounting holes.

If the fan is going to be positioned horizontally or vertically. That needs to be taken into account as well. Although the majority of cases require fans to be installed vertically. Several newer cases & gaming cases enable horizontal installation.

Even though this won’t have any lasting effect on the sort of bearings you pick, it may influence your decision.

Let’s see how the 120 mm fans stack up against the 140 mm fans.

Computer fan

The difference between a 140 mm fan and a 120 mm fan is substantial. Compared to 120 mm fans, 140 mm fans provide superior cooling, ventilation, and performance.

When contrasting 140 mm with 120 mm fans, the following are the most crucial aspects to think about.

To chill out

One of the primary functions of any fan is to cool down the entire system. If we want to know whether a fan can effectively cool a system, we need to look at the CFM (or RPM).

CFM stands for cubic meters per minute. A fan’s airflow rate is measured in cubic feet per minute. If you’re looking to compare fans, it’s the most crucial metric. The finest 140 mm case fans have longer blades, allowing them to generate more airflow and hence more power.

There’s more to keeping your cool than just the size of your blade. Blade geometry, material, and rotational speed can all have an impact on cooling performance.

The speed of a round is measured in revolutions per minute. The number of revolutions per minute is the speed at which the fan is spinning. The RPM of 120 mm fans is often greater than that of 140 mm fans.

The best results come from 140 mm fans, although even 120 mm fans are effective.

Dynamic pressure

Consider also the fan’s static pressure rating. How much air your fans push through the heatsinks or meshes enclosures and into your system is dependent on this.

There isn’t a simple way to categorize fans because their functions vary based on the amount of cooling needed. Hot air may be cooled with the use of fans. On occasion, they’ll have to contend with dust as well as other environmental hazards.

Because of this, it’s safe to assume that pressure ratings are always conducted in a perfectly clean environment.

It’s tough to pick a victor in this field. Still, many people are worried about the static pressure readings.

If you can’t decide between two fans, go with the one that has the highest static pressure. The typical size for this type of fan is 140 mm.

Winner: 140 mm by a hair.

– Noise

Making sure your PC or type is quiet is a must. Fans are the primary source of computer noise. There are quiet fans available, including the Be Quiet! The noise level of the fans has dropped to a near-silence.

Nowadays, fans are rarely audible. Especially if you purchase and install them yourself in your personal computers. Fans on prebuilt laptops and PCs tend to be the loudest. To accomplish the same level of cooling with fewer rotations, 140 mm fans are the quietest option.

The volume of an event depends not just on its source but also on its context. Therefore characteristics like speed and weather are equally significant. What’s fascinating is that the noise level remains constant regardless of blade size. As a result, there will be no obvious victor.

Because they don’t have to rotate as often, fans with a 140 mm diameter won the cooling competition.

– Integrating Your Supporter Into Your Structure

Also, you should think about the size of your PC case and if the fan will fit in there. Consider using evidence other than the size of the fan to support your claim. Make the best argument you can and then play around with the fan settings.

Because of their larger size, 140 mm fans may not fit in your case. With a 120 mm fan, you can do more with your rig’s design.

The bearings you want to use in the construction are another factor to think about. This can add extra bulk and weight to the fan, depending on how it’s attached.

You can get the job done for less using rifle bearings. Numerous 120 mm fans and so many 140 mm fans are included. Unfortunately, you can only buy these fans preassembled.

– Not all fans can buy them.

How you get in touch with them depends on the scenario and the fan. However, the vast majority of fans provide all three.

The victor is 120 mm fans, which can be adapted to a wider variety of housings.

– An Evaluation of the Fan’s Worth

The fan’s contribution to the system’s overall worth is something to think about as well. Typically, 140 mm fans cost more than 120 mm ones, however this isn’t always the case. There is a price premium for fans having 120 mm fans compared to those with smaller fans.

It’s a good idea to spend a little extra on a new fan. If you can find one that costs less than what you’re currently using.

If your building generates a lot of heat, you may get by with fewer 140 mm fans. This may help you save money.

The victorious measurement was 140 mm. For those with a large fan base, this is crucial.

The question of lighting arises.

More and more people are investing in lighting. The use of RGB lighting enhances the aesthetic appeal of a PC design. If you’re going for an open case construction, you may choose from a wide variety of RGB-lit 120 mm and 140 mm fans. Although more expensive than a 120 mm fan, this model has additional customization choices.

Your sole concern is whether your fan will require additional illumination. You will have to purchase extra fans if this happens.

DC vs. PWM is something else to think about.

The choice between a 120 mm and a 140 mm fan may arise.

Your motherboard’s DC fan is managed via the three-pin headers on the board (direct current).

However, a PWM fan (pulse-width modulation) contains an additional pin. That facilitates signaling to other components.

Even if there isn’t much of a distinction between the two types of fans. A PWM fan will be quieter and more beneficial in the long run. If you want to make your system as flexible as possible in the future, a PWM fan could be the way to go.

What happens to the fan’s quality and size when you Overclock?

The amount of force exerted on your fan is another factor to consider. How frequently do you find yourself overclocking? If that’s the case, you need to invest in a good 140 mm fan.

Overheating is a common side effect of overclocking and can have a negative effect on performance. With a 140 mm fan, you can safely push your system to its limits without limiting it.

Ultimately, what’s the best size fan to use?

Several considerations for assembling a computer have been covered. One of these is the size of the fan.

You may choose from a wide variety of fans. But we think a 140 mm fan is the sweet spot for the vast majority of individuals. Because of this!

The efficiency, airflow, and cooling of 140 mm fans are superior to those of other sizes.

Even though they cost more, 140 mm fans are a great investment.

The performance of the fan is more significant than its size. When choosing a fan, size isn’t everything; quality is what counts. Selecting one that fulfills all of your requirements and excels in all relevant areas is crucial.

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