What is the current dual graphics technology and what are the advantages?

It's so cute on the first floor.,SLI is NVDIA's technology.。。。 It was even said that the N card does not support !! I'm sorry for you!

SLI technology is to connect two PCI Express graphics cards in series, and then improve the display performance of the whole system through the cooperation of the two graphics cards.

As early as the era when the PCI interface slot was still the mainstream specification, 3DFX, a well-known 3D graphics chip manufacturer at that time, published an SLI technology that supported its voodoo 2 voodoo2 3D accelerator card, which connected two voodoo 2 accelerator cards in series to cooperate with the operation of the two chips, so as to accelerate the system image processing speed, and make its performance far greater than the performance of a single accelerator card.

But historically, this acceleration technology has not attracted people's attention, with the acquisition of 3DFX by NVIDIA, because the AGP socket was the dominant market at that time, NVIDIA did not invest in this technology again, and this technology has become history for a long time, but history has not let SLI technology be buried.

With the advancement of technology, the emergence of PCI-E slots, motherboards, graphics cards, and processor technologies have developed rapidly, NVIDIA has finally discovered the huge market prospect of SLI technology again, so it concentrated on the goalkeepers of 3DFX that year, absorbed the 3D acceleration card technology applied by 3DFX on Voodoo 2, and published the SLI technology that could not be realized due to the limitation of AGP slots in the past, aiming to connect two graphics cards with excellent performance in series, so that the 3D performance of the whole system can be maximized.

SLI technology is to insert two graphics cards equipped with NVIDIA graphics chips into the two slots of the motherboard PCI-EX16 at the same time, and then connect them with an SLI connection card, which transmits digital signals between the two graphics cards, and the frame data processed by the graphics card is collected and processed, and then output as a whole signal. In order to ensure the division of tasks and work together between the two graphics cards, NVIDIA integrates the SLI control function directly inside the GPU chip, then the chip is responsible for the connection and cooperation of the graphics card, it assigns the task to the two graphics cards for rendering processing, and then collects the processing results, and outputs a complete and efficient graphics picture after its own calculation and resynthesis.

Two graphics cards can be connected.

It seems that the N card is not supported.

1. The function of dual graphics cards is to increase power consumption and reduce performance. Since the user of the dual graphics card notebook chooses the independent graphics card, then the notebook is mainly used to play games, but the dual graphics card supports the game is often not powerful, especially the game will automatically choose the integrated graphics card, and the result is a waste of the independent graphics card.

2. In addition, let's talk about the working principle of the independent graphics card in the dual graphics card, if you need to improve the display performance (such as games, ** and most other applications), then the two old orange graphics cards must work, and the power consumption at that time is the power consumption of two graphics cards, which is not as good as a graphics card, because all the rendering and other work is done by independent graphics cards, which is indeed high-performance, but the rendering effect is not directly transmitted to the display, but the stove must be transmitted to the integrated graphics card and then Wu Tan can be displayed.

Advantages for SLI and CF:

1. The performance is improved compared with that of a single card, up to 180%.

Disadvantages: First, power consumption, dual SIM must use higher electricity than a single card system.

Second, the efficiency is low, and the dual SIM card cannot achieve 200% effect.

Third, the requirements for the whole machine are high, the CPU should be better, and the power supply power is large enough to be able to afford it.

Fourth, it is not that the game has been improved in the dual card system, for example, AMD dual card group has a CF, and in individual games, it does not rise but falls.

If the current dual graphics card for the notebook is to use a discrete graphics card when playing games, the performance is high, but the power consumption and heat are large; When you are not playing games, you can switch to an integrated graphics card for entertainment and office, which can save power and generate low heat.

Categories: Computer, Networking, >> Hardware.

Analysis: Dual graphics cards are now mainly NV's "SLI" technology and ATI's "crossfire" technology. The effect of using dual graphics cards can be 30 40 faster than that of a single card (don't think that using dual graphics cards is 1+1 2).

In fact, SLI or crossfire applications are basically not used. Because dual graphics cards are only used for professional applications or running scores, if you play games, a single card is far more comfortable than a dual card.

NV's SLI needs to use a bridge or a smile to drive a soft connection. The requirement is that the same model of graphics card produced by the same manufacturer, such as 7600GT, must be two with the same specifications. Also have a motherboard with dual PCI-E interfaces.

ATI firepower crossover requires the use of a master card and a slave card, and ATI master cards are generally more expensive than slave cards. For example, the crossfire of the group requires one piece of x1900xtx and one piece of x1900xt.

There are now two types of motherboards with dual PCI-E interfaces, one is 8x8 and the other is 16x16. This means that because the PCI-E interface graphics card is a 16x graphics card. If you use the 8x8 interface, you can use 14+2 or 10+6 or 8+8 to run in the mode of dual graphics cards, and you cannot give full play to the maximum performance of dual cards.

If you use a 16x16 dual PCI-E motherboard, you can get the most out of your dual graphics cards. However, the double 16 motherboard is much more expensive than the double 8 motherboard.

Now there is an option, which is to buy the 7950 model for NV. 7950 itself is a dual-core graphics card, that is to say, on a card to form a sli, if you use 7950 group of sli, it is equivalent to 4 graphics cards when they hit the slag with good luck. Hehe.

But it's very expensive......

The analysis is as follows:

Advantages: The performance is stronger than that of a single graphics card (the same model, the same working platform): power consumption, twice that of a single graphics card in theory.

Note: 1. Not really.

All single graphics cards can be combined with another single graphics card to form a dual graphics card, or a multi-graphics card mode. The same brand and model are necessary for most graphics cards to form a crossfire or SLI mode.

2. Not all software can play the advantage of multiple graphics cards, it depends on the internal optimization design of the software or game, as well as whether your physical platform, including but not limited to motherboard, CPU, and power supply supports it.

Extended Materials. Dual graphics cards are used to use two graphics cards (integrated-independent, independent-independent) to be bridged through a bridge to process image data together. The graphics cards produced by NVDIA and AMD on the market call this way of working SLI and Cross Fire, respectively. To achieve dual graphics cards, you must have the support of the motherboard.

This way of working can theoretically increase the image processing power of the original single graphics card to twice the image processing power, but the power consumption and cost are also high.

Dual graphics card this is the notebook to come.

The source of the platform,The reason is that from 2010 to the present, Intel has launched BAI's processors have integrated DUGPU chips, and now the AMD platform is also designed in this way,So unless it is the mainstream model in 09,10 years to the presenti3,i5,i7 or the motherboard number is HM55,HM65 notebooks are all dual graphics card models as long as there is a separate graphics card。 The purpose is that when the laptop uses the battery and does not need high performance, it can switch to the integrated graphics card to save power consumption, increase battery life, and also control the heat generation of the notebook. The disadvantage is that there is only one system that does not support XP, and it can only be switched under the win7 system.

The laptop's dual graphics cards don't give any performance boost. The only benefit is energy saving.

If it refers to the dual graphics cards on the notebook, then this dual graphics card is a helpless move by the manufacturer.

In fact, only dual graphics cards on desktops are true dual graphics cards (meaning two independent graphics cards form a pair).

Because now both AMD and Intel (the initiator is Intel) have integrated graphics technology in the CPU, and this kind of integrated graphics card is also called core graphics card. One of the benefits of this kind of core graphics card for desktops is that it can reduce costs, because the graphics card technology has been integrated into the CPU, and some users who do not play games can save a lot of money on discrete graphics cards. Of course, the disadvantage is also here,The game performance of the core graphics card is really not flattering,It can be said that about 80% of the online games and large-scale stand-alone games on the market,It can't cope with it。

Therefore, gamer users who like to play games will not touch this kind of core graphics card (although the performance of AMD's core graphics card is much stronger than that of Intel, it is still not satisfactory, and the performance is still better than the performance of the discrete graphics card that is about 400 yuan on the market). They tend to prefer to buy another discrete graphics card, while the core graphics card is discarded. But that's for desktops, because desktops are very convenient for changing graphics cards.

For notebooks, it must meet the needs of both game-type users and general users, so it can only have a core graphics card at the same time, and then match a discrete graphics card on the motherboard, which increases the cost in vain, and the performance of this discrete graphics card, is it really stronger than the core graphics card? Oh, not necessarily!

Therefore, for notebooks, at least at this stage, dual graphics cards only have disadvantages (the increased cost is actually paid by consumers), but there are no benefits (the performance of new discrete graphics cards is not necessarily better than core graphics cards), and dual graphics cards will only increase power consumption, that is, more power.

One integrates and the other shows independently, just like the headlights of a car can pick up high beams and low beams.

Depending on the needs, the discrete graphics card has good performance, but the heat and power consumption are amazing, and it is very bad when using the battery.

Integrated graphics, which is already very good for current technology, can meet basic needs in terms of performance, and is amazingly low in heat and power consumption, making it the first choice when using batteries.

Intel processor notebook GPU and GPU are not working at the same time, but there are settings according to the driver, in.

Features such as automatic switching between the GPU and the office are different, but AMD's situation is different, because AMD has hybrid crossfire technology, which provides some specified models of different AMD graphics cards to work at the same time.

to better performance.

Some of the APU notebooks can be mixed according to the model of the core display and the model of the independent display,As for the performance improvement, this is estimated to be not much higher,Therefore, the performance of the graphics card must be about the same as the computing power of the processor,Otherwise, it will receive a bottleneck phenomenon on the lower side,And we all know that AMD's APU frequency is not particularly high,Notebooks designed to be hybrid firefights may also consider this problem,Therefore, the performance improvement will not be very big in theory。

Dual graphics cards generally refer to the core graphics card + discrete graphics card that comes with the notebook CPU. Now the new notebooks are all dual graphics cards as long as they have a separate graphics card.

What are the advantages of the discrete display card compared to the integrated graphics card?

Discrete graphics and integrated graphics are the two main forms of graphics cards in computers. An integrated graphics card is a graphics card attached to the processor, while a discrete graphics card is a graphics card that is plugged into a PCI slot. Although many computers now use integrated graphics, discrete graphics still have a lot of advantages.

1.Better performance.

Discrete graphics cards have their own memory and processor, which makes them perform better. They are better able to handle large amounts of graphics data and**, making games and other graphics applications smoother. In contrast, the performance of an integrated graphics card is limited by the performance of processing a silver-containing device.

2.Better gaming experience.

Discrete graphics cards provide a better gaming experience. They support high resolutions and frame rates, ensuring smooth gameplay without slow-motion, tearing, and more. Discrete graphics cards also support higher-level lighting effects and materials, making them more realistic than integrated graphics cards.

3.Better multitasking.

Discrete graphics cards allow multiple graphics applications to be run at the same time, which makes multitasking easier. Users can work on multiple tasks at the same time, such as audio and**, gaming, and graphic design, without slowing down the performance of their computer.

4.Popular game support.

Many popular games require high graphics performance to get the most out of their graphics. Discrete graphics cards can meet these requirements, while integrated graphics cards are prone to crashes, stuttering, or slow loading due to lack of performance.

Overall, discrete graphics perform better than integrated graphics, provide a better gaming experience, are easier to multitask, and support many popular games that require high-performance graphics. Although it is higher, a discrete graphics card is an indispensable investment for users who need better graphics performance.