In a computer case, each component draws a significant amount of wattage and the fans aren’t different. In a computer, you will find different types of fans such as case fans, CPU fans, PSU fans, etc. On average, a computer fan uses anywhere from 0.06 watts to 6 watts.
The wattage consumption of computer fans can differ for different fan sizes, speeds, types, and brands. However, they haven’t that much difference in wattage consumption. To learn more about this, read on and find out the wattage consumption of your computer fans.
Wattage Consumption by Computer Fans
Compared to other components of the computer, the fans use a comparatively lower amount of wattage. Actually, there you will get an abrupt idea about the wattage consumption of the fans. And we have tried to provide that here.
In the market, you will have RGB and non-RGB fans with different sizes and RPM (revolution per minute) values. That’s why we have two sections here, one includes RGB, and the other one is non-RGB.
1. Wattage Consumption by non-RGB Computer Fan
When you are going to find out the wattage consumption of the computer fan, you will need to check the size of it, the technology used, the speed, and the manufacturer’s brand. These four things can increase or decrease the wattage consumption.
| Different Sized 12V Fan (mm) | Speed (RPM) | Wattage Consumption (Watt) |
| 80 | 2000 | Up to 1.8 |
| 3000 | Up to 3 | |
| 92 | 1800 | Up to 1.5 |
| 2000 | Up to 3 | |
| 120 | 1000 | Up to 2.3 |
| 2000 | Up to 6 | |
| 140 | 1000 | Up to 1.7 |
| 2000 | Up to 6 | |
| 200 | 850 | Between 2 to 4 |
*This is an abrupt idea of the wattage consumption by a single computer fan.
Generally, most of the fan consumes this amount of wattage while they are working. But it can differ from different manufacturers. For example, a fan from Noctua uses 0.6W whereas a Corsair fan with the same configuration uses about 3.9W. Here we have provided a table that includes different fan sizes with different speeds.
2. Wattage Consumption by RGB Computer Fan
If you are using RGB fans on your computer then the wattage consumption can slightly increase. You will need to add the extra wattage consumption by the RGB with your fan’s wattage usage.
For example, let’s consider a fan that has an RGB which has a rated voltage and current of 5V and 0.34amps. It means the RGB required (5*0.34) or 1.7 watts. The fan usually uses about 2.4 watts. So, with RGB, the fan will consume (2.4+1.7) or 4.1 watts.
Questions You May Ask
What About the Wattage Consumption of Fans with Different Pins?
In the market, you will have a fan with either 3 pins or 4 pins. Now, you might think about whether they can affect the wattage consumption rate or not. Well, in that case, the difference isn’t that much and it’s negligible. So, yes, you won’t have any big margin wattage consumption between 3 pins and 4 pins computer fans.
How many watts does a CPU liquid cooler use?
It will depend on the size of the fan in the cooler. The higher the diameter, the higher the watt it will need. Generally, it can use 2 to 4 watts per hour.
How many watts do GPU fans use?
It will depend on how many fans are there on your GPU. If there are two then you will need to multiply the wattage for a single fan by two, and if you have 3 fans, then multiply by 3. Then you will get the watts required by your GPU fans.
Final Thoughts
When you are willing to find out the actual wattage needed by the computer fans, search for the model’s name on the internet. Then you will get the actual wattage consumption rate. And if you want an abrupt idea then we hope this article has helped you out.
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