Will the display card affect the computing power
Publish: 2021-05-01 04:46:48
1. The speed of FPS mouse controls the visual rotation angle, which has nothing to do with the resolution
just set FPs to 800 * 600 and mouse dpi400
just set FPs to 800 * 600 and mouse dpi400
2. The performance of the graphics card has not changed, but the image quality has improved, its workload has increased, and it can not play
to update the official nvdia driver http://www.nvidia.cn/Download/index.aspx?lang=cn
if not, switch back to DVI or D-sub interface.
to update the official nvdia driver http://www.nvidia.cn/Download/index.aspx?lang=cn
if not, switch back to DVI or D-sub interface.
3. How many will have an impact, but 970 is already a very good graphics card, so there should be no big problem, if you are still not at ease, you can only change 980
4. 1、 Color
(color, brightness, contrast, angle of view, color temperature) first of all, special emphasis: for any display (CRT / LCD /...), color is always the first! The authenticity and softness of color display bring the most direct feeling to the eyes! As for the brightness, contrast and even the angle of view why should be classified into color, the following will have the answer. Rich and full colors, appropriate brightness and contrast, wide viewing angle, flexible and reasonable color / brightness / contrast adjustment
Q 1.1: why do two brands of LCD display the same picture and look different
a 1.1: the display effect of liquid crystal is determined by the panel, control circuit and other aspects. Different liquid crystals adopt different components and technologies, and the display effect will certainly be different. In fact, this kind of difference also exists in CRT, such as tellon and Dana tube. However, e to its own characteristics, the difference in this aspect is larger than that in CRT. This has also become the most effective way for us to distinguish the advantages and disadvantages of liquid crystal - the most convincing standard is to display the same picture, contrast effect and the feeling of our own eyes< Q 1.2: how many colors can liquid crystal display? How much worse than CRT
a 1.2: Currently, the most powerful LCD on the market can directly display about 167000 colors (note that not every LCD can display so many colors), while CRT can display an unlimited number of colors. This is the inherent defect of liquid crystal, but the two principles are not the same. CRT displays a certain color by several adjacent color dots, and the color dots are only red, green and blue, which give you "illusion" after mixing; The LCD is able to display 167000 kinds of colors for each color dot, giving you direct colors. So we can say that LCD is strong in this aspect, and CRT has only three colors
Q 1.2.1: can the LCD with 167000 colors display colors beyond this range
a 1.2.1: for colors that cannot be displayed directly, liquid crystal also has some processing methods, such as alternately displaying two colors, resulting in the "illusion" of a new color. In this respect, the technology of each manufacturer is not the same, and some are not treated, so there will be differences in color and richness
Q 1.3: what is the difference among 16 bit color, 24 bit color and 32 bit color
a 1.3: in terms of color number, it's obviously the difference between the 16th, 24th and 32nd power of 2. From the perspective of human eye feeling, 16 bit color can basically meet the display needs, and the coarse appearance is similar to 24 bit color and 32-bit color. If you study it carefully, you will find that 16 bit color display will appear faint separation line in large area gradient color. In practical applications, the most commonly used color is 24 bit, such as the string "#80ff2e" that represents the color in web pages and other places. When you look at the pictures with ACDSee, you can see that the color depth of most pictures is 24 bit. As for 32-bit color, it is added on the basis of 24 bit color. It is said that 8-bit transparent color is added. In fact, it is not much different from 24 bit color. At least our eyes can't distinguish it
Q 1.4: I use LCD, is it enough to set 16 bit color in windows
a 1.4: of course not! Or set it to 32-bit color! According to the above, the color number of LCD direct display is between 16 bits and 24 bits, and there is a special technology to enrich the color. Therefore, the LCD display set to 16 bit color is actually overqualified, especially for those excellent LCD, it is really a waste of effort of manufacturers
Q 1.5: is the higher the brightness and contrast parameters, the better
a 1.5: the answer is No. The brightness and contrast parameters represent a very extreme value, which has little significance for daily application. The values of 400 and 500 are too abstract. We should take the feeling of our eyes as the criterion, that is, "bright but not dazzling, clear but not vain". I have seen a Qili liquid crystal, nominal brightness 400, contrast 500, but how to see the image feel pale and bleak; There is also a certain model of MEG with a nominal contrast of more than 500. In fact, it is black and blacker, so that it feels dark as a whole. In addition, the nominal parameters of many famous brands are relatively conservative, such as a brightness of 280 of NEC, and the actual use of 50% is enough.
Q 1.5: why do you think the color of liquid crystal is different from different perspectives
a1.5: liquid crystal displays through refraction, which inevitably leads to the problem of visual angle. When the line of sight is deflected, the color will also change. Now there are many kinds of technologies to increase the viewing angle of LCD. Generally, the horizontal viewing angle is larger, because the eye is on the same horizontal line as the display screen. So the liquid crystal we see now is basically like this: the color is the best when it is right, it becomes lighter and grayer when viewed from the left and right sides, white and lighter when viewed from the top, and black and thicker when viewed from the bottom
Q 1.6: it is said that liquid crystal is not suitable for drawing because there are few colors that can be displayed, right
a 1.6: it used to be, but now it has become a misunderstanding. The 167000 colors of liquid crystal display are enough for human eyes. Moreover, the image is processed by software now, and human eyes are not needed to distinguish "#3399ff" and "#3399fe". From another perspective, even if two CRTs display the same color, there are still subtle differences. LCD is not suitable for drawing, the key reason lies in the perspective! For graphic workers, looking at one color on the left and changing another color on the right is the most fatal
Q 1.6.1: Although I'm not a professional graphics worker, I often need to deal with some pictures in my work. Can I use LCD
a 1.6.1: Yes, but you should choose the one with good color and big perspective. If you have sufficient funds, you can consider Eizo which is recognized as excellent. If you are thrifty, you can also use youpai and LG. There is a big difference between the models of Samsung and Philips, so you can choose the one at the middle end
Q 1.7: the two brands of LCD use the same panel, is the display effect the same
a 1.7: it's not the same, even there are obvious differences. Although the panel is the main, but the quality of control circuit and optimization technology also directly affects the display quality, which is reflected in the color difference. For example, a certain model of Mingji and youpai both use the Youda panel, but the display effect is different. Mingji is lighter, a bit transparent, while youpai is more colorful
Q 1.8: how to set the color temperature of liquid crystal
a1.8: e to different principles, the colors of liquid crystal and CRT are different at the same color temperature. For most Easterners, setting CRT at 9300k is more comfortable, while setting LCD at 6500k is more comfortable. Of course, it varies from person to person. It's better to adjust RGB independently. Anyway, you can look comfortable
Q 1.9: when I go to the store to buy LCD, how can I choose the one with better color
a 1.9: the simplest way is to display the same image to see which is the most comfortable. Sometimes there is no such condition, then you can ask to display a certain background of XP. Another effective way is to show a large area of gradient to see if the transition is smooth. It's convenient to judge the angle of view, as long as you look at it from different angles. Brightness and contrast don't care too much, just look at the adjustable range, because the brightness and contrast of LCD with good color are certainly good<
Second, speed
(response time, refresh rate, frame rate)
this is a hot topic everywhere. Before the research, it is necessary to introce some concepts (in the case of using analog signal):
the time required for liquid crystal cells to change from one color to another. The typical response time given by general manufacturers is the sum of rise time TR and fall time TF. As for which of TR and TF stands for the change from black to white, it is not exactly the same for different types of panels, so I will not go into the details here. Now the common response time is 25ms, 16ms
and so on. 25ms means that the whole process of the liquid crystal cell from black to white and then black takes 25ms
the frequency at which the display updates the picture, such as 75Hz, means 75 updates per second. This value is given by the graphics card. If the value given by the graphics card is too high, the display will be black, or an error message will be displayed
for movies, frame rate refers to the number of pictures played per second; For 3D games, the frame rate is the number of pictures generated by the graphics card per second, which is commonly known as the FPS value. In this paper, for the convenience of explanation, the frame rate refers to the FPS value
a technology in 3D processing that allows the graphics card to follow the refresh rate of the display synchronously to generate images. For example, if the refresh rate is 60Hz, the graphics card will generate 60 pictures per second, which is provided synchronously every time the display is refreshed. Even if the graphics card is so strong that the FPS can reach 500, it still only does 60; If you say FPS of graphics card can't reach 60, I don't know... Then why do you turn on vertical synchronization
the monitor is very mechanical. It works according to the resolution and refresh rate given by the graphics card. If it can't stand it, it will go black or report an error. Take the refresh rate of 100MHz as an example, when the display updates the screen image in the 0 second, 0.01 second, 0.02 second, the signal source is the signal
output by the graphics card in the 0 second, 0.01 second, 0.02 second. If the graphics card generates 500 FPS and the display still gives 100 frames per second, most of the frames generated by the graphics card are wasted; If the graphics card can only generate 20 FPS, the display will still give 100 FPS per second, but when the graphics card does not generate new images, the display will continue to give them according to the previous signal
after understanding the above, let's discuss the following issues< Q 2.1: how does response time affect me
A2.1: in short, the response time brings about the trailing or resial image of the moving image. In this article, we have to discuss it in more detail. First, we can operate it: right click "my computer" on the desktop, select "properties", and a "system properties" box appears. Press and hold the title bar, quickly drag the whole box, pay attention to the text in the middle, you will find that the text has a "tail", which is caused by the response time. The longer the response time is, the longer the tail is, the more obvious it is
Q 2.1.1: do all kinds of response times have the same effect on eyes
a 2.1.1: in fact, our eyes also have response time, and the image also has resial time on the retina. However, in this regard, the high brightness image can stimulate the eyes for a longer time, and the resial image is more obvious. When the liquid crystal changes from dark to bright, the human eye has been waiting for it to turn bright for a long time, but it is slow because of the response time, and the human eye can easily feel this phenomenon; When the liquid crystal changes from bright to dark, the resial bright image on the retina of the human eye originally lasts a little longer. The human eye thinks this is normal, and the delay caused by the response time of the liquid crystal is partially or even completely offset by the response time of the human eye. It can be concluded that the human eye is more sensitive to the response time of liquid crystal from dark to bright Note that this time may not be called rise time!)
Q 2.2: is the response time constant
A2.2: not so. We usually refer to the typical response time, as explained above. When the liquid crystal cell changes colors, the process is not the same, so the response time in various cases is not the same, we can not know the specific time, but there must be
(color, brightness, contrast, angle of view, color temperature) first of all, special emphasis: for any display (CRT / LCD /...), color is always the first! The authenticity and softness of color display bring the most direct feeling to the eyes! As for the brightness, contrast and even the angle of view why should be classified into color, the following will have the answer. Rich and full colors, appropriate brightness and contrast, wide viewing angle, flexible and reasonable color / brightness / contrast adjustment
Q 1.1: why do two brands of LCD display the same picture and look different
a 1.1: the display effect of liquid crystal is determined by the panel, control circuit and other aspects. Different liquid crystals adopt different components and technologies, and the display effect will certainly be different. In fact, this kind of difference also exists in CRT, such as tellon and Dana tube. However, e to its own characteristics, the difference in this aspect is larger than that in CRT. This has also become the most effective way for us to distinguish the advantages and disadvantages of liquid crystal - the most convincing standard is to display the same picture, contrast effect and the feeling of our own eyes< Q 1.2: how many colors can liquid crystal display? How much worse than CRT
a 1.2: Currently, the most powerful LCD on the market can directly display about 167000 colors (note that not every LCD can display so many colors), while CRT can display an unlimited number of colors. This is the inherent defect of liquid crystal, but the two principles are not the same. CRT displays a certain color by several adjacent color dots, and the color dots are only red, green and blue, which give you "illusion" after mixing; The LCD is able to display 167000 kinds of colors for each color dot, giving you direct colors. So we can say that LCD is strong in this aspect, and CRT has only three colors
Q 1.2.1: can the LCD with 167000 colors display colors beyond this range
a 1.2.1: for colors that cannot be displayed directly, liquid crystal also has some processing methods, such as alternately displaying two colors, resulting in the "illusion" of a new color. In this respect, the technology of each manufacturer is not the same, and some are not treated, so there will be differences in color and richness
Q 1.3: what is the difference among 16 bit color, 24 bit color and 32 bit color
a 1.3: in terms of color number, it's obviously the difference between the 16th, 24th and 32nd power of 2. From the perspective of human eye feeling, 16 bit color can basically meet the display needs, and the coarse appearance is similar to 24 bit color and 32-bit color. If you study it carefully, you will find that 16 bit color display will appear faint separation line in large area gradient color. In practical applications, the most commonly used color is 24 bit, such as the string "#80ff2e" that represents the color in web pages and other places. When you look at the pictures with ACDSee, you can see that the color depth of most pictures is 24 bit. As for 32-bit color, it is added on the basis of 24 bit color. It is said that 8-bit transparent color is added. In fact, it is not much different from 24 bit color. At least our eyes can't distinguish it
Q 1.4: I use LCD, is it enough to set 16 bit color in windows
a 1.4: of course not! Or set it to 32-bit color! According to the above, the color number of LCD direct display is between 16 bits and 24 bits, and there is a special technology to enrich the color. Therefore, the LCD display set to 16 bit color is actually overqualified, especially for those excellent LCD, it is really a waste of effort of manufacturers
Q 1.5: is the higher the brightness and contrast parameters, the better
a 1.5: the answer is No. The brightness and contrast parameters represent a very extreme value, which has little significance for daily application. The values of 400 and 500 are too abstract. We should take the feeling of our eyes as the criterion, that is, "bright but not dazzling, clear but not vain". I have seen a Qili liquid crystal, nominal brightness 400, contrast 500, but how to see the image feel pale and bleak; There is also a certain model of MEG with a nominal contrast of more than 500. In fact, it is black and blacker, so that it feels dark as a whole. In addition, the nominal parameters of many famous brands are relatively conservative, such as a brightness of 280 of NEC, and the actual use of 50% is enough.
Q 1.5: why do you think the color of liquid crystal is different from different perspectives
a1.5: liquid crystal displays through refraction, which inevitably leads to the problem of visual angle. When the line of sight is deflected, the color will also change. Now there are many kinds of technologies to increase the viewing angle of LCD. Generally, the horizontal viewing angle is larger, because the eye is on the same horizontal line as the display screen. So the liquid crystal we see now is basically like this: the color is the best when it is right, it becomes lighter and grayer when viewed from the left and right sides, white and lighter when viewed from the top, and black and thicker when viewed from the bottom
Q 1.6: it is said that liquid crystal is not suitable for drawing because there are few colors that can be displayed, right
a 1.6: it used to be, but now it has become a misunderstanding. The 167000 colors of liquid crystal display are enough for human eyes. Moreover, the image is processed by software now, and human eyes are not needed to distinguish "#3399ff" and "#3399fe". From another perspective, even if two CRTs display the same color, there are still subtle differences. LCD is not suitable for drawing, the key reason lies in the perspective! For graphic workers, looking at one color on the left and changing another color on the right is the most fatal
Q 1.6.1: Although I'm not a professional graphics worker, I often need to deal with some pictures in my work. Can I use LCD
a 1.6.1: Yes, but you should choose the one with good color and big perspective. If you have sufficient funds, you can consider Eizo which is recognized as excellent. If you are thrifty, you can also use youpai and LG. There is a big difference between the models of Samsung and Philips, so you can choose the one at the middle end
Q 1.7: the two brands of LCD use the same panel, is the display effect the same
a 1.7: it's not the same, even there are obvious differences. Although the panel is the main, but the quality of control circuit and optimization technology also directly affects the display quality, which is reflected in the color difference. For example, a certain model of Mingji and youpai both use the Youda panel, but the display effect is different. Mingji is lighter, a bit transparent, while youpai is more colorful
Q 1.8: how to set the color temperature of liquid crystal
a1.8: e to different principles, the colors of liquid crystal and CRT are different at the same color temperature. For most Easterners, setting CRT at 9300k is more comfortable, while setting LCD at 6500k is more comfortable. Of course, it varies from person to person. It's better to adjust RGB independently. Anyway, you can look comfortable
Q 1.9: when I go to the store to buy LCD, how can I choose the one with better color
a 1.9: the simplest way is to display the same image to see which is the most comfortable. Sometimes there is no such condition, then you can ask to display a certain background of XP. Another effective way is to show a large area of gradient to see if the transition is smooth. It's convenient to judge the angle of view, as long as you look at it from different angles. Brightness and contrast don't care too much, just look at the adjustable range, because the brightness and contrast of LCD with good color are certainly good<
Second, speed
(response time, refresh rate, frame rate)
this is a hot topic everywhere. Before the research, it is necessary to introce some concepts (in the case of using analog signal):
the time required for liquid crystal cells to change from one color to another. The typical response time given by general manufacturers is the sum of rise time TR and fall time TF. As for which of TR and TF stands for the change from black to white, it is not exactly the same for different types of panels, so I will not go into the details here. Now the common response time is 25ms, 16ms
and so on. 25ms means that the whole process of the liquid crystal cell from black to white and then black takes 25ms
the frequency at which the display updates the picture, such as 75Hz, means 75 updates per second. This value is given by the graphics card. If the value given by the graphics card is too high, the display will be black, or an error message will be displayed
for movies, frame rate refers to the number of pictures played per second; For 3D games, the frame rate is the number of pictures generated by the graphics card per second, which is commonly known as the FPS value. In this paper, for the convenience of explanation, the frame rate refers to the FPS value
a technology in 3D processing that allows the graphics card to follow the refresh rate of the display synchronously to generate images. For example, if the refresh rate is 60Hz, the graphics card will generate 60 pictures per second, which is provided synchronously every time the display is refreshed. Even if the graphics card is so strong that the FPS can reach 500, it still only does 60; If you say FPS of graphics card can't reach 60, I don't know... Then why do you turn on vertical synchronization
the monitor is very mechanical. It works according to the resolution and refresh rate given by the graphics card. If it can't stand it, it will go black or report an error. Take the refresh rate of 100MHz as an example, when the display updates the screen image in the 0 second, 0.01 second, 0.02 second, the signal source is the signal
output by the graphics card in the 0 second, 0.01 second, 0.02 second. If the graphics card generates 500 FPS and the display still gives 100 frames per second, most of the frames generated by the graphics card are wasted; If the graphics card can only generate 20 FPS, the display will still give 100 FPS per second, but when the graphics card does not generate new images, the display will continue to give them according to the previous signal
after understanding the above, let's discuss the following issues< Q 2.1: how does response time affect me
A2.1: in short, the response time brings about the trailing or resial image of the moving image. In this article, we have to discuss it in more detail. First, we can operate it: right click "my computer" on the desktop, select "properties", and a "system properties" box appears. Press and hold the title bar, quickly drag the whole box, pay attention to the text in the middle, you will find that the text has a "tail", which is caused by the response time. The longer the response time is, the longer the tail is, the more obvious it is
Q 2.1.1: do all kinds of response times have the same effect on eyes
a 2.1.1: in fact, our eyes also have response time, and the image also has resial time on the retina. However, in this regard, the high brightness image can stimulate the eyes for a longer time, and the resial image is more obvious. When the liquid crystal changes from dark to bright, the human eye has been waiting for it to turn bright for a long time, but it is slow because of the response time, and the human eye can easily feel this phenomenon; When the liquid crystal changes from bright to dark, the resial bright image on the retina of the human eye originally lasts a little longer. The human eye thinks this is normal, and the delay caused by the response time of the liquid crystal is partially or even completely offset by the response time of the human eye. It can be concluded that the human eye is more sensitive to the response time of liquid crystal from dark to bright Note that this time may not be called rise time!)
Q 2.2: is the response time constant
A2.2: not so. We usually refer to the typical response time, as explained above. When the liquid crystal cell changes colors, the process is not the same, so the response time in various cases is not the same, we can not know the specific time, but there must be
5. If it is an external independent display and only uses the external display to output pictures, the corresponding power consumption should be reced; If two screens are displayed at the same time, the corresponding power consumption will be increased.
6. Generally, it will increase the workload of the graphics card. For example, with one hand, it's much easier to do things with one hand. With two hands, the workload is much larger. Multi screen display will not affect the performance of the graphics card. Don't worry,
7. It's difficult for the naked eye to distinguish from the digital simulation
8. The key is to see the load, that is, what the content is displayed!, If it's the general Internet, office, stock market, general online movies, let alone gtx1060, even the general check show doesn't have much pressure
if you open two games and one is displayed on one screen, it is equivalent to opening multiple functions. If the computer opens two games, the greater the game, the greater the pressure
if one screen is connected to two monitors, and one monitor displays half of the screen, the video card will be affected by the performance of the game just as it is connected to an ordinary monitor.
if you open two games and one is displayed on one screen, it is equivalent to opening multiple functions. If the computer opens two games, the greater the game, the greater the pressure
if one screen is connected to two monitors, and one monitor displays half of the screen, the video card will be affected by the performance of the game just as it is connected to an ordinary monitor.
9.
bus route: no.m424 → no.m212, the whole journey is about 16.2km
1. Walk about 450m from dashuikeng primary school to guanyue Hotel Station
2. Take no.m424, after 15 stops, to Longhua Branch of people's hospital
3. Walk about 380m, to Longhua Tianhong shopping mall station
4. Take no.m212, after 11 stops, to central original station
5, walk about 400m, Arrive at Jiufang Shopping Center (Longhua
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