How to use Nvidia's SLI technology
The NVIDIA SLI technology is a method for increasing the graphics performance of your computer. If you are a gaming enthusiast or need to perform graphically intensive tasks such as 3D modeling, using SLI technology can make a difference.
In this article, we will guide you step by step on how to use NVIDIA's SLI technology and get the most out of your graphics cards.
What does SLI mean?
SLI stands for "Scalable Link Interface" and is a technology developed by NVIDIA that allows two or more graphics cards to work together to improve the computer's graphics performance. In practice, this means that you can install two or more graphics cards in your machine and have them work together to provide better performance than a single graphics card.
How does SLI technology work?
When using SLI technology, each graphics card processes half of the image. For example, if you are playing a video game with a resolution of 1920x1080 pixels, each graphics card will process 960x1080 pixels of the image. The two partial images are then combined to create the final image displayed on the screen.
Using SLI technology also requires the use of an SLI bridge. The SLI bridge is a cable that connects the graphics cards together and allows them to communicate with each other to process the image.
It is important to note that not all games support SLI technology. However, most modern games do, and using SLI technology can provide significant performance improvements in compatible games.
What is Nvidia's SLI Technology?
Nvidia's SLI (Scalable Link Interface) technology is an advanced solution that allows multiple graphics cards to be used simultaneously within a single system. In practice, this means that you can combine the performance of two or more video cards to achieve a significant improvement in gaming and graphical applications.
The graphics cards are connected to each other through an SLI bridge, which allows them to communicate with each other and work in parallel to process images. This increases the frame rate in games, improves image quality, and reduces loading times.
To use SLI technology, you need a motherboard compatible with the PCI Express standard and at least two Nvidia graphics cards of the same series. Additionally, the operating system must be properly configured to recognize multiple video cards.
It is important to note that not all games support SLI technology, and the performance boost depends on the game's ability to take advantage of multiple graphics cards. However, many of the latest games support this technology and can greatly benefit from the additional performance offered by multiple graphics cards.
- In summary:
- The Nvidia SLI technology allows the use of multiple graphics cards within a single system;
- The video cards are connected to each other through an SLI bridge;
- The use of SLI technology requires a compatible motherboard, at least two Nvidia graphics cards of the same series and the correct configuration of the operating system;
- Not all games support SLI technology, and the increase in performance depends on the game's ability to take advantage of multiple graphics cards.
Hardware requirements for using SLI technology
To use Nvidia's SLI technology, you need a system with certain hardware requirements. Below we list the main ones:
- Compatible motherboard: The motherboard must be compatible with SLI technology and equipped with two or more PCI Express x16 slots.
- Compatible graphics cards: The graphics cards must be compatible with SLI technology and of the same model. For example, it is not possible to use an Nvidia GeForce GTX 1070 with an Nvidia GeForce GTX 1080.
- SLI bridge: You need an SLI bridge that physically connects the graphics cards together. The bridge can be included in the motherboard box or purchased separately.
- Adequate power supply: Using SLI technology requires a lot of power, so it is important to have an adequate power supply that can provide enough power to the graphics cards.
- Effective cooling: Using SLI technology generates a lot of heat, so it is important to have an effective cooling system to prevent the system from overheating.
In addition, it is advisable to check if your system meets the minimum requirements required by the game or application you intend to use with SLI technology. In some cases, it may be necessary to have an even more powerful hardware configuration to get the most out of it.
It is important to remember that using SLI technology does not automatically guarantee improved performance in all games or applications. Some games may not be compatible with SLI technology or may not benefit significantly from it. It is always advisable to check the specifications of the game or application before deciding to use SLI technology.
Configuring SLI technology
To configure Nvidia's SLI technology, you need to follow some simple steps.
Step 1: Check system compatibility
Firstly, it is important to verify that the system is compatible with SLI technology. This means that the motherboard must support the use of two or more graphics cards in parallel and that the graphics cards must be compatible with the technology.
Nvidia SLI.Step 2: Installing the Graphics Cards
After verifying system compatibility, you can proceed with installing the graphics cards. This may vary depending on the model of motherboard used, but in general, it is necessary to insert the graphics cards into the corresponding PCI-Express slots on the motherboard.
Step 3: Connecting the SLI Bridges
After installing the graphics cards, it is necessary to connect them together using SLI bridges provided by the manufacturer. SLI bridges are thin cables that are connected to connectors on the graphics cards and serve to synchronize image processing between two (or more) graphics cards.
Step 4: Configuring the Nvidia Driver
Once the previous steps have been completed, you must proceed with configuring the Nvidia driver to activate SLI technology. To do this, you need to download and install the latest version of the Nvidia driver from their official website. After installation, you can access the driver control panel and activate SLI technology.
Step 5: Verifying SLI Technology Functionality
After completing configuration, it is important to verify that SLI technology has been activated correctly. There are several options for doing this, including using graphic benchmarks or monitoring performance during gameplay. If there are any issues, you can consult guides provided by the manufacturer or seek online assistance.
- Verify System Compatibility
- Installing Graphics Cards
- Connecting SLI Bridges
- Configuring Nvidia Driver
- Verifying SLI Technology Functionality
Advantages and Disadvantages of Using SLI Technology
Using Nvidia SLI technology has its advantages and disadvantages. Let's take a closer look:
Advantages
- Increased Performance: Using two or more graphics cards in SLI can lead to a significant increase in performance, allowing you to play very demanding games without frame rate problems.
- Better Gaming Experience: Thanks to the increased performance, the gaming experience becomes smoother and more immersive, with less lag and stuttering.
- Support for High Resolutions: With SLI technology, it is possible to support very high video resolutions, such as 4K or even 8K, offering superior visual quality.
- Flexibility in System Upgrades: If you want to improve your computer's performance, instead of having to buy a new graphics card, you can simply add another identical card using SLI technology.
Disadvantages
- Higher Costs: Using SLI technology requires purchasing at least two identical graphics cards, thus increasing the overall system costs.
- Limited Compatibility: Not all games support SLI technology, so it may not be possible to fully exploit the performance of the graphics cards in some titles.
In general, the use of SLI technology can lead to a significant increase in system performance, but it is important to also consider the additional costs and compatibility with your hardware and software. Before deciding to use this technology, it is always advisable to do thorough research on your system's specifications and the games you wish to play.
Conclusion
As we have seen, Nvidia's SLI technology can offer a significant increase in system performance, improving gaming experience and visual quality. However, it is important to carefully evaluate the additional costs and compatibility with your hardware before using it. In any case, the use of SLI technology can represent an interesting solution for those who want to get maximum performance from their computer.

Michael Anderson - Software Engineer
My name is Michael Anderson, and I work as a computer engineer in Midland, Texas.
My passion is sharing my knowledge in various areas, and my purpose is to make education accessible to everyone. I believe it is essential to explain complex concepts in a simple and interesting way.
With GlobalHowTo, I aim to motivate and enrich the minds of those who want to learn.





