What does independent direct connection mean?

Independent graphics direct connection means to shield the nuclear display and use the independent graphics to work and output. From startup to shutdown, the independent graphics card is used; the independent graphics directly outputs the display screen instead of outputting through the nuclear display. It can further To improve game performance, strictly speaking, direct connection of independent graphics with shielded core graphics can also be counted. However, this kind of laptop consumes a lot of power, greatly reducing mobile office capabilities.

The operating environment of this tutorial: Windows 10 system, DELL G15 computer.

What does independent graphics direct connection mean?

Independent graphics direct connection means shielding the nuclear display and using independent graphics to work, independent graphics output, and using independent graphics cards throughout the entire process from startup to shutdown. If the graphics card is not directly connected, the default is mixed mode. Whether to use core graphics or independent graphics will be determined by the computer itself. The independent graphics direct connection method appears in high-end notebook series. Strictly speaking, independent graphics direct connection that shields the core display can also be counted. However, this kind of notebook computer consumes a lot of power, which greatly reduces the mobile office capability.

The graphics card, also known as the display card, is an important part of the computer and is responsible for outputting and displaying graphics. For people who like to play games and engage in professional graphic design, the graphics card is very important. The display chips of mainstream graphics cards are mainly manufactured by NVIDIA and AMD. Graphics cards using NVIDIA display chips are usually called N cards, while graphics cards using AMD display chips are called A cards.

The independent graphics direct connection method appears in high-end series. Strictly speaking, independent graphics direct connection that shields the core graphics can also be counted. However, this kind of notebook consumes a lot of power and greatly reduces mobile office capabilities. The so-called "independent display direct connection" means that the independent display directly outputs the display screen instead of outputting through the core display, which can further improve game performance.

The advantage of independent graphics direct connection is that the graphics card will "steal" some power consumption from the CPU, thus improving performance. For users who play games, a model with a direct-connected graphics card will perform better when playing games. For ordinary users, there is no need to pursue "independent display direct connection" and the impact will be small. Taking the current notebooks that use RTX30 independent graphics as an example, if you look for some relevant tests, you can see that there is a huge performance difference between independent graphics direct connection and mixed output, which can even reach 20%.

The screen signal output of the notebook is divided into 3 modes, namely hybrid mode, independent display direct connection mode, and nuclear display mode.

1. Mixed mode

Most notebooks on the market currently use mixed output, that is It is said that no matter whether it is nuclear display or independent display calculation, in the end, the nuclear display will output the picture. The advantage of this approach is that it helps the notebook's battery life. For example, daily use or standby can be done by the core display (calculation and screen output are completed by the core display), while when playing games, the independent display is responsible for the work (the independent display is responsible for Calculate, and then give the calculated results to the nuclear display for output). Of course, the switching between them is automatically completed by the system and does not require your intervention. Such a good division of labor will help save power.

In addition, because in the mixed mode, the core display is ultimately responsible for the picture output, so the wiring on the motherboard is relatively easier and the cost is lower. However, since the independent display cannot be directly connected to the screen, the signal needs to be output through the core display, which will cause some performance loss.

2. Direct connection of independent graphics

Since the mixed mode will bring certain performance losses to the independent graphics performance, some The notebook adopts a design that can switch the independent graphics direct connection mode. That is to say, you still use the mixed mode for daily work applications, but when playing games, you can switch to the independent graphics direct connection mode (the independent graphics directly calculates and outputs the picture to the screen), so that the independent graphics does not have to detour the output. However, for a design that can switch the independent graphics direct connection, additional signal lines for the independent graphics direct connection need to be planned on the notebook motherboard wiring, and the production cost will increase. Therefore, generally high-end notebooks are equipped with the independent graphics direct connection mode.

Of course, for some notebooks with independent graphics cards but no direct connection mode, you can directly connect an external screen to the HDMI, DP, TYPE-C and other interfaces of the notebook to achieve direct connection. The premise is that these interfaces are directly connected to the independent graphics card (As for whether these interfaces are directly connected to the independent graphics card, you can check it through the manufacturer's instructions or in the graphics card control panel program. If you don't know how to read it, you can pay attention to the computer configuration network. Public account message: dnpz2010).

3. Core display mode

The core display mode is easy to understand. Entry-level or business notebooks generally only have core display, so the signal output is definitely only Can use nuclear display.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What does independent direct connection mean?. For more information, please follow other related articles on the PHP Chinese website!