Is there a big difference between 2G and 4G for a laptop graphics card?

The size of the memory, the width of the memory bits, and the frequency of the memory. The type, bit width, and frequency of the memory determine the read and write speed of the memory particles. Video memory has a great impact on the improvement of image quality and resolution, and the size of video memory has become a very important factor for gamers who want to get a good gaming experience.

There are integrated graphics cards, discrete graphics cards, and core graphics cards. The integrated graphics card is to make the display chip, video memory and related circuits on the motherboard, and integrate it with the motherboard; The graphics chip with integrated graphics is separate, and most of them are integrated into the motherboard's northbridge chip.

Some motherboard integrated graphics cards also have separate video memory installed on the motherboard, but their capacity is small, the display effect and processing performance of the integrated graphics card are relatively weak, and the graphics card cannot be upgraded hardware, but the potential of the graphics chip can be tapped by adjusting the frequency of CMOS or flashing in a new BIOS file to achieve software upgrades; The advantages of integrated graphics cards are low power consumption, low heat generation, and the performance of some integrated graphics cards is already comparable to entry-level discrete graphics cards, so there is no need to spend extra money on a graphics card. However, many games have a considerable demand for graphics cards, such as some large standalone or online games, and integrated graphics cards are not up to the task.

The discrete graphics card is a graphics card independent of the motherboard, not integrated with the motherboard, the independent graphics card is also good and bad, the video memory and processing power of the general independent graphics card is greater than the integrated graphics card, and the heat dissipation of the notebook and the power supply of the battery have a very high demand, for users who want to play large games, the independent graphics card is a necessary hardware equipment. In addition, due to the size of the notebook and other reasons, the discrete graphics card is generally soldered directly to the motherboard, and the DIYER who needs to DIY the graphics card needs to analyze the feasibility of the operation by himself.

Video memory, as long as it is sufficient, the capacity gap will not lead to a performance difference.

The size of the video memory is not the only factor that measures the performance of the graphics card, the main measures of the performance of the graphics card are:

Graphics card bandwidth: The bit width of the graphics card refers to the bit width of the video memory, that is, the number of bits of data that can be transmitted in a clock cycle, the larger the number of bits, the greater the amount of data that can be transmitted in an instant, which is one of the important parameters of video memory.

Stream Processor: A stream processor directly maps multiple graph data streams to the stream processor for processing. The stream processor can optimize the shader engine more efficiently, it can process stream data, and also output a stream data, this stream data can be applied to other superscalar stream processors (SPS), stream processors can run in groups or large numbers, thus greatly improving the parallel processing capacity.

Video memory type: Video memory is one of the key core components of the graphics card on the motherboard, and its quality and capacity will be directly related to the final performance of the graphics card. It can be said that the graphics chip determines the functions and basic performance that the graphics card can provide, and the performance of the graphics card depends largely on the video memory.

No matter how good the performance of the display chip is, in the end, its performance must be played by the supporting video memory.

The difference between a 2G graphics card and a 4G graphics card is:

Both 2G and 4G are video memory capacities, and the most obvious difference between the two is the difference in the size of the video memory.

Generally speaking, the main impact of 2G and 4G video memory on users is that games, especially large-scale 3D stand-alone games, require high configuration, graphics card configuration and video memory capacity.

Now I need to explain to the landlord that the most important thing when identifying a graphics card is the model of the graphics card, for example, NVIDIA's graphics card GTX780 of the seventh generation and GTX950 of the ninth generation.

At this time, if the video memory of the 780 is 2G, and the video memory of the 950 is 4G, but the result is that the performance of the 780 is 2-3 times that of the 950, so when choosing a graphics card, the most important thing to look at is the performance and model of the graphics card, rather than its video memory.

There is a big difference between a 2G graphics card and a 4G graphics card:

1. Not big, if the graphics card under the same model, if the memory capacity is larger, there will be some small advantages.

2. For different models of graphics cards, there is no need for video memory, because the video memory of mainstream graphics cards on the market is generally 2G, which is enough to meet almost all the requirements of users.

Note: When buying a computer or graphics card, ask someone who knows computer knowledge to make suggestions.

The performance of the graphics card is not determined by the video memory, it is mainly determined by the GPU.

So when you compare, you can compare their parameters.

CUDA processor cores: 960

Drawing rate (MHz): 980

Texture fill rate (billion sec):

CUDA processor cores: 384

Drawing ** rate (MHz): 1058

Texture fill rate (billion sec):

The CUDA processor core is equivalent to whether the CPU is single-core or multi-core, and under the same core architecture, the more CUDA cores, the stronger the GPU's computing power.

660 and 650 have more than 1 times more CUDA cores than the latter when the paint rate is similar, and the texture fill rate is more than twice as fast.

3D scenes are composed of textures, and the characteristics of 3D games are that the scene changes from time to time, the faster the texture filling rate, the faster the scene is generated, and the higher the frame rate, the smoother the frame.

Video memory is only used to store the data to be processed by the GPU and the processed data, as long as the size can meet the needs of the GPU, more is a waste, there is no meaning.

1. The size of the video memory is different.

GB of discrete graphics card: A 2GB discrete graphics card has 2GB of video memory.

GB of discrete graphics card: A 4GB discrete graphics card has 4GB of video memory.

Second, ** is different.

GB discrete graphics card: The ** of 2GB discrete graphics card is relatively low, generally ranging from about 1,000 yuan.

GB of discrete graphics card: 4GB of discrete graphics card is higher, because the higher the video memory, the higher the performance of the graphics card, and the more expensive it will be in the market, generally, more than 1500 yuan.

3. Different rendering capabilities.

GB discrete graphics card: The ** of 2GB discrete graphics card is relatively low, generally ranging from about 1,000 yuan.

GB discrete graphics card: 4GB discrete graphics card is stronger, because the higher the video memory capacity, the stronger the rendering ability.

The main difference between the two is in the capacity of the video memory particles, from a macro point of view, the size of the video memory, 2G video memory can render twice the graphics data of 1G video memory at the same time.

As for the data: for example, the GTX 770 1G and GTX 770 2G graphics cards run the same game at 1920x1080 resolution, and all other things being equal, the 2G version runs at about twice the frame rate of the 1G version, but in most cases, there is basically no difference in the frame rate between the two when not running on a high-resolution monitor.

Graphics. Video card, graphics card, also known as graphics card, is one of the most basic configuration and most important accessories of a computer.

Many new computer users are very entangled in the choice of graphics card, I don't know the difference between each type of graphics card, temperament 2G and 4G are also the latest to understand. Sorted out some introductions about the difference between 2G independent graphics and 4G independent graphics, let's take a look

1. Storage

G video memory is much larger than 2G video memory,2G video memory can no longer meet the needs of the latest 3A masterpieces,The game's requirements for video memory are often 4G starts,It can even reach more than 8G under the high-resolution screen,So buy a graphics card now and buy video memory if you can buy a large amount of video memory,Of course, if you only play ordinary online games such as LOL, then 2G video memory is completely sufficient。

2. The graphics card is a device used by the computer to process graphics, under normal circumstances, the graphics card and the motherboard are connected together, and some motherboards have integrated graphics cards. Discrete graphics cards need to be installed separately, generally do not occupy system memory, and are technically much more advanced than integrated graphics cards, which can get better display effects and performance than integrated graphics cards, and are easy to upgrade the hardware of graphics cards. There are also disadvantages of discrete graphics cards, as computers with discrete graphics cards consume more power and require additional costs to purchase a graphics card.

3. When choosing a graphics card, pay attention to the graphics card model, when the same graphics card model, the larger the video memory capacity, the better. Try to choose a graphics card from a well-known manufacturer, and the quality of the graphics card is ***. Try to choose a better product with a radiator, pure copper material is the basic, and nickel plating is better.

The core frequency is equivalent to the speed at which a person eats, and the higher the frequency of the graphics card, the faster the eating speed, and the faster the graphics card can process the image.

Second, capacity

The difference between G and 4G is the memory capacity. A 4G graphics card is not necessarily better than a 2G graphics card, and the performance of the graphics card is determined by a combination of factors such as the graphics chip, bit width, bandwidth, and video memory frequency. Graphics card video memory is short for display memory (similar to the memory of a motherboard).

Its main function is to temporarily store the data to be processed by the display chip and the data that has been processed. The more powerful the graphics core, the more memory is required.

2. The main performance of the graphics card comes from the core, for example, GTX1060 compared with GT610, the number of stream processors between the two is far apart, but the difference between the two video memory is not so exaggerated, so the question of whether 4G video memory is better or 2G video memory is better must first be established on the same level of graphics card.

3. Running speed

The capacity of the 4G independent display is twice that of the 2G independent display, when the game runs with full special effects at 4K high resolution, the advantages of the 4G independent display will be revealed, and there will be no frame drops (Caton), and the 2G independent display may be a little difficult in full special effects mode, and frame drops (Caton) are also normal.

The above is the introduction of the difference between the computer 2G independent display and the 4G independent display, I hope it will be helpful to all of you who still have doubts.

Graphics card (video card, graphics card) full name card, also known as graphics card, is the most basic configuration of the computer, one of the most important accessories. As an important part of the graphics card, it is a device for the computer to convert digital and analog signals, and undertakes the task of output display. The graphics card is connected to the motherboard of the computer, which converts the computer into a display display, and the graphics card still has image processing capabilities, which can assist the CPU to work and improve the overall running speed.

For people who are engaged in the profession, graphics cards are very important. Civil and military graphics card manufacturers mainly include (AMD) and () 2. Today's TOP500 computers all contain graphics card computing cores.

In scientific computing, the graphics card is referred to as a display. ）

There are two kinds of N cards and A cards, and most of the three major computer manufacturers L D brands use A cards (red labels) R7-445 More than 90% of them are N cards (green labels);

ASUS has its own graphics card brand, and the top of the graphics ladder list has always been occupied by ASUS graphics cards;

There is no Dell card, and there is no Lenovo card;

Those who know a little bit of computers will use Intel+N card, and the red mark is all kinds of concave; The key point is here: 4G video memory ASUS is very little, D is a lot, how can we continue to hang and beat D, or be beaten by anti-hanging, don't panic, the opportunity is here; [GTX960 graphics card test] PS: Cards below GTX960 should not be entangled in whether it is 4G video memory [3DMark test].

Tomb Raider 9 Game Performance Test].

Average frames] browser game Dark Souls 3].

Average frame rate] "Watch Dogs".

Average frames] GTA 5].

Average frames] Summary] First of all, in the theoretical test, the graphics card with 4GB video memory is ahead of the graphics card with 2GB video memory with a slight score difference, but this score difference is almost negligible, and the occupancy of video memory during the test only accounts for more than 1GB, so it can be seen that in applications or games with video memory utilization less than 2GB, the gap between 4GB and 2GB video memory graphics card is negligible. [Then] 1, the graphics card should be selected gt930-940-950-960-1050-1060-1070-1080 according to this order; 2. In the case of the same series such as GTX960 2G or 4G, if you do not project a screen of more than 40 inches and do not play 4K, please carefully consider the graphics card brand, and other aspects of the computer, there is no difference between 2G and 4G; 3. If you have an N card, choose a green card for a green card, and the brand does not have a green card, please change the brand; 4. Quality, appearance, motherboard, after-sales, three-year failure rate, LCD no bright spot is also very important; 5. All computer components should be connected to the motherboard, and the quality of the motherboard is the biggest aspect that determines the stability and performance of the computer;