Is the graphics card good for N card or A card?

Undoubtedly, consumer electronics is an industry supported by science and technology. Whether it is hardware such as semiconductor chips, circuits, shell processing, or software such as operating systems and applications, it is completely a product of science. However, such a scientific industry, in the hands of consumers, has produced all kinds of mysterious and mysterious sayings and games that are difficult to explain scientifically. "A card has better picture quality than N card", "A card has better sound quality and N card has faster network speed" and "lossless sound quality is not as good as CD" ... Many of these "metaphysics" make people laugh and cry. Today, let's talk about the topic of metaphysics. Design game

A card has better picture quality than N card?

This is a long-standing view among DIY players. Although the performance of A card will lag behind N card in some generations and the technology is not as advanced as N card, the phrase "A card has good image quality" can be the reason for some people to buy A card. However, the view that "A card has good image quality" is often only a vague description such as "the color is more transparent and profound", and there are few accurate data to prove it, so "A card has better image quality than N card" is more like a kind of metaphysics. So does this statement make sense?

The image quality comparison between A card and N card is a hot topic among netizens, and many such spoof comparison pictures are also circulating on the Internet.

display card

Coincidentally, our website has also done similar tests. You can click on the link below to view the corresponding test article.

Related reading:

Give you a truth! A/N graphics card color competition

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From the test point of view, there is no obvious difference in image quality between A card and N card, and the difference in data can be regarded as the error of test instrument and test environment. At the same time, in the case of using digital interface output, the statement that "A card is better than N card" has not been reflected in the test.

However, does this mean that this statement is completely unfounded? Not exactly. In some cases, "A card is better than N card" may be true.

◆ Use analog output interface. Digital output is the mainstream way at present. Any graphics card that outputs the same color value will have the same effect, which is determined by the principle of digital output. When the display receives a color value, such as RGB(255, 255, 200), it will display the corresponding color according to this color value, and it has no influence on the display from which card this color value comes, which is why there is no difference in the image quality between the A card and the N card in the test. director

VGA is an analog signal interface, and the image quality is easily disturbed.

However, not all users use graphics card digital output. Compared with digital output, analog output is more easily influenced by physical components, and the difference of analog output circuit and cable will lead to the difference of output quality. Some users use VGA and other interfaces to output analog signals, and some graphics cards are not made of enough materials, which may lead to poor image quality. It should be noted that this may not only make the image quality of A card better than that of N card, but also make the image quality of A card worse than that of N card.

◆ The drive setting is incorrect. This may be the chief culprit of the view that "one card has good image quality"! In a certain period of time, in order to be compatible, NVIDA sets the color dynamic range as 16-235 by default, while the A card is a complete 0-255. What's the difference between these two performances? Just look at the picture below.

The color range is 16-235, and the picture is gray.

After setting the color to 0-255, the picture is obviously more transparent.

16-235 is obviously grayer than the color range of 0-255. The reason why the color of A card is more transparent and deeper than that of N card is often presented in this case. The solution is also very simple, just set the color dynamic range of the N card to 0-255 during driving. Now the new driver of N card also uses the color dynamic range of 0-255 by default, which is no different from that of A card.

It can be seen that the image quality of A card is better than that of N card. There are some reasons behind this view, but the image quality should not be the reason to buy a card /N card. With correct configuration, there is no difference in image quality between A card and N card. Pay more attention to the performance, special effects and power consumption of the graphics card when purchasing.

A card has good sound quality and N card has fast network speed?

This is another mysterious statement. When a netizen asked how to buy it, someone replied, "A card has good sound quality and N card has fast network speed". It seems that many people still agree (manual funny). What's going on here? Does the graphics card really affect the sound quality and network speed? display card

In fact, the graphics card is also responsible for audio output. At present, graphics cards are often equipped with HDMI output, which can output both audio signals and video signals. AMD, on the other hand, has built-in "TrueAudio" audio technology in GPU and integrated audio DSP, which is specially used to improve audio processing and sound effects without calling other system resources. In other words, a card does have unique audio processing technology, and TrueAudio may be the source of the view that "a card has good sound quality".

A card has built-in audio technology.

However, the role of TrueAudio is not to improve the sound quality. As mentioned earlier, TrueAudio is used to improve the processing ability of sound effects, which can reduce the burden of CPU in processing sound effects and provide some sound interfaces. But the specific sound performance depends on the built-in sound effects. It may be more accurate to say that "A card has good sound quality" than "A card plays complex sound effects more smoothly". Sound card game game

AMDTureAudio also needs game support.

So where did the phrase "Ncard Fast" come from? The source of this statement is even more ridiculous. Some netizens found that when the N card driver was updated, the speed actually showed "2.66GB/ s", so they asked if you were afraid? Obviously, this data is untenable. The reason why it shows such an exaggerated speed is that when the driver is updated, the data is downloaded to the memory for caching. When the installer reads the cache in memory, it will show exaggerated speed. Drive download download

N card has a fast network speed, and it is the pot that drives updates to show bugs.

In short, the metaphysical view that "A card has good sound quality and N card has fast network speed" is only used by netizens to tease the graphics card and cannot be taken seriously.

Can I improve the sound quality by using players such as Foobar?

If you want to say which metaphysics is stronger, it must be the hardest hit. Many people use computers to play with the fever sound quality of HiFi. In addition to the platitudes of metaphysics hardware such as decoder, power amplifier and earphone, a lot of metaphysics was born in the software. A popular one is to switch to some players such as Foobar2000, which can greatly improve the sound quality. high-fidelity/hi-fi loudspeaker

It seems natural that changing software can improve the sound quality? But this is really not necessarily. First of all, Foobar2000 is on the official Q&; It is clearly stated on page A that Foobar2000 cannot improve the sound quality. Secondly, from the principle of PC outputting audio, Foobar2000 has no positive influence on sound quality.

Official Q & amp；; A shows that Foobar2000 can't improve the sound quality, and people put YY in their minds as soon as they hear the sound quality improvement.

If a PC wants to play a piece of audio, the player's job is to decode the audio file into PCM, and then output it to other DAC devices through the audio interface of Win system (MME, WASAPI, ASIO, etc.) for digital-to-analog conversion. ), and then you can hear the sound through hardware such as power amplifier and headphones. The player has no influence on the whole audio playing process except parsing the audio file. When parsing an audio file, as long as the algorithm is normal, the result will never be different-just like what you use to decompress the same rar document, the decompressed things are the same. So with different players, there will be no difference in sound quality. DirectX sound card compression software

The interface of Foobar2000 looks professional, but when playing music files normally, the sound quality will not be affected.

However, some people do swear that using a player like Foobar2000 can really hear better sound quality. In addition to psychological hints, "sound quality improvement" may be due to the following reasons.

◆ Sound effect is turned on. If you turn on the sound effect of the player, the player will not decode the audio file into PCM audio stream, but will add material to it. However, Foobar2000 is a player that supports many sound plug-ins. Many people don't install the original Foobar2000, and may turn on the sound by default. Finally, it is reasonable to cause different hearing-note that the change of hearing does not mean the improvement of sound quality.

Many people can't tell the sound quality from the sound effect.

◆ Use an audio interface with less interference. As mentioned above, the audio interfaces of Win system include MME, DirectX, WASAPI, ASIO, etc. Some of these audio interfaces belong to low-priority APIs and will not be monopolized by players. For example, when the player plays audio with a sampling rate of 44. 1kHz, a notification prompt tone suddenly appears, and the sampling rate of this prompt tone is 48kHz, then the system will mix the sound played by the player with the prompt tone and output it after SRC. In this way, the sound quality will naturally decline. Moreover, Foobar2000 supports exclusive interfaces such as WASAPI and ASIO, which can ensure that music playback will not be disturbed-the negative effect is that you may not hear QQ prompts. QQQQ

Using exclusive channels such as WASAPI can really reduce the interference and delay in sound quality.

◆ Use audio files with higher specifications. By installing plug-ins, Foobar2000 can support high-definition audio or DSD audio with specifications far exceeding the sound quality of CD. HiFi enthusiasts love to use Foobar2000, which is also a big reason. In addition, Foobar2000 supports a better SRC algorithm, which can SRC audio from low sampling rate to high sampling rate. In this way, the waveform will become smoother and the hearing will be more delicate. From this point of view, Foobar2000 still has a positive effect on sound quality.

Foobar2000 can play audio with higher specifications than CD, such as Hi-Res, which can improve the sound quality in this respect.

CD disc has the best sound quality?

It is indeed a disaster area in metaphysics. Even in the digital audio era, some people still believe that 1+ 1 will get different results in different environments. For example, some people think that the sound quality of CD is the best, better than the audio files in PC, especially better than lossless compressed audio! But in fact, scientifically speaking, this view is unreasonable. HiFi hard disk

Is the sound quality of CD better than that of computer audio files?

Audio files are stored in digital form of "0 1" whether on CD or hard disk. If you want to play audio, you need a decoder (DAC) to read these digital signals of "0 1", and then convert them into analog signals, which are amplified by an amplifier and output to headphones/,so that we can hear the sound. Obviously, no matter whether these "0 1" are stored on CD or hard disk, it won't make any difference-just like whether this text is copied on A4 paper or displayed on a computer, the content is exactly the same. As long as you are not dazzled, there is no difference in what you read. Speaker display

Whether it is a CD or a computer, there is an error correction mechanism for playing audio, and it is basically impossible to get dizzy (unless the CD or audio file is damaged). Of course, due to the different clock precision, the digital signal quality output by different devices is also different-but this cannot be the reason why CD-ROM is better than computer sound quality. Both CD players and computer decoders have products equipped with high-precision clocks. Listening to songs on CD is no more fidelity than listening to audio files on hard disk.

Therefore, it can be concluded that the carrier wave has no influence on the sound quality of digital audio. Whether you use CD, HDD, SSD or TF card, as long as the digital signals of audio files are the same, there will be no difference in sound quality. The sound quality of solid-state hard disk is not as good as that of mechanical hard disk, and Kingston memory is worse than other memories, which is sheer nonsense.

There are differences in memory sound quality, so I ask if you are afraid.

So is it meaningful that CD is better than lossless compressed audio? Doesn't make sense either. Lossless audio is called lossless because after decompression, the data is exactly the same as the original audio file, and there is no difference at all. Playing lossless audio files will only decompress the audio into original data one more step, and will not affect the sound quality. Therefore, the view that FLAC is better than APE and WAV is better than FLAC is also untenable.

The waveform of lossless audio is the same as the original data, and there is no difference.

One advantage of digital audio carriers such as CD and hard disk over analog audio carriers such as vinyl and audio tapes is that once recorded, the sound quality will not deteriorate. Some friends think that the sound quality of audio files burned by CD is not as good as that of CD, which is basically the inertia thinking left over from the vinyl/tape era. Compared with lossless audio files, CD has no advantage in sound quality. From the convenience point of view, the demise of CD has become an irresistible trend.

abstract

There are so many "metaphysics" in the field of consumer electronics because people apply the inertial thinking of analog signals to digital signals. The controllable factors of digital signals are far greater than those of analog signals, so there is not so much "metaphysics" in this information age. You play, you play HiFi, there is really no need to entangle too much! display card

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