How to distinguish between dynamic and static graphics cards

Oh, and what he means by this is that the graphics card memory can dynamically share the system memory, and when he says static, he means that the onboard video memory is of a fixed size. In fact, mainstream graphics cards now have their own onboard video memory, and they can also share system memory.

You can search for an EVEREST tool to see the actual onboard video memory of your graphics card. Under Graphics Processing Unit (GPU), Memory Size, where the actual on-board memory is shown. The "adapter memory size" seen in the "Display" property in the Windows system is the video memory capacity after HM, that is, after dynamic sharing.

It's not like that, you heard it wrong. The motherboard's built-in graphics card is a little bit from your memory, and the independent graphics card will not, but how many MB is divided, the more the better, between 128MB and 1024MB; The more memory bit width, the better, between 128bit and 448bit; The less memory speed, the better, in-between.

Integrated graphics card or discrete graphics card.

Graphics card, there is no need to distinguish between dynamic or static, the key is to see how the GPU is, if its core specifications are strong, it is strong. Now a lot of integrated graphics cards are also much better than discrete graphics cards! However, if the funds allow, it is better to buy independent.

The graphics card doesn't matter what dynamic or static, the key is to look at the GPU, and the core specifications are strong. Now a lot of integrated graphics cards are also much better than discrete graphics cards!

Static display means that when the display displays a certain character, the corresponding light-emitting diode is constantly conductive to the currency cut-off. In static display, a smaller current can achieve higher brightness; Dynamic display is the rotation of each display to light up one by one. The brightness of the display is not only related to the on-current, but also related to the ratio of the lighting time to the interval time.

The difference between static display and dynamic display is that the principle is different, the CPU time is different, and the CPU time is different.

First, the principle is different.

1. Static display: The static display only updates the content locked in the digital display when the displayed digit needs to be changed.

2. Dynamic display: The dynamic display needs to scan each LED display regularly, and each LED display takes turns to work at a time, and only one LED display can be made each time.

Second, the CPU time is different.

1. Static display: Static display occupies less CPU time, and the display is stable and reliable.

2. Dynamic display: Dynamic display occupies CPU for a long time, as long as the display program is not executed, the display will stop immediately.

3. Occupation i o is different.

1. Static display: When the number of display digits of static display is large, it occupies more io.

2. Dynamic display: Dynamic display uses less hardware and occupies less io.

Static is to display, for example**!

Dynamics are like watching a movie with continuous movement!

When dynamic, you can check whether the display has tailing!

Static display: The system can keep the display unchanged after each display output, and only update the content latched in its digital display when the displayed digit needs to be changed, which takes up less CPU time and the display is stable and reliable. The disadvantages are:

When the number of digits is large, it occupies more io.

Dynamic display: The CPU needs to scan each LED display regularly, and each LED display takes turns to work at a time, and only one LED display can be made at a time, but due to the phenomenon of human eye vision, it still feels that all LED displays are displayed at the same time. The advantage of this display is that it uses less hardware and takes up less io.

The disadvantage is: it occupies the CPU for a long time, and as long as the display program is not executed, the display will stop immediately.

This 512MB is shared with the memory without errors. The so-called dynamic is that the graphics card dynamically allocates memory for video memory, and the memory is divided to a certain extent, but when you run with a large memory occupation, a part of the memory will be returned.

If you upgrade to 4G, you need 64-bit system support, otherwise you can only recognize the memory. And according to my fulfillment, the set will dynamically share about 1G of memory.

ps classmate, you've met a profiteer.

That's when you've been fooled! The graphics card of the 128 is very old now! It's rubbish! Expanding the memory won't solve the problem! Complain about him!

The speed of shared memory is not comparable to the speed of independent video memory, even if your memory is too large to 4G, the speed of 512 dedicated video memory is much faster than that of 512 shared video memory! The dealer is a big profiteer, and the shared video memory should be made clear to you.

Be. The effect is that you have less memory available, and the memory will not be faster as video memory. How big it is to expand also takes up that space, how can it not matter.

It is possible that the memory information has been changed, and the 128 has been changed to 521. Scammed.

Decide whether it is a static display or a dynamic display, that is, it is not a **, nor a digital tube, but is determined by the circuit.

The same digital tube can be connected to a dynamic display circuit or a static display circuit.

When the circuit is determined, when the program is required to be written, it must be consistent with the circuit, that is, the circuit decides.

The last problem, that is a four-in-one digital tube, because the 8 terminals selected by the segment have been connected together in parallel internally, and the 4 common terminals are separated, for such a digital tube, it is necessary to use a dynamic display circuit.

However, it does not mean that it is determined by the digital tube. Because, when you want to decide to use a static display circuit, it is good not to use this kind of four-in-one digital tube, and you must use a single digital tube. Therefore, the decision is still in the designer, not in the digital tube, let alone in the **.

1.Driven by: bai

There are two formulas: constant current drive and constant voltage drive, which should not require a DAO

Release, the constant current drive is more specialized, and it is more expensive (there are more circuit boards and chips to keep the current constant, increasing the service life and stability of the LED display).

2.The difference between dynamic control and static control is explained upstairs. To sum up, the difference is that the dynamic control saves the cost of the driver chip, saves electricity (the brightness is small and the power is small, hehe), and the static scanning is brighter than the dynamic scanning in the case of the same specification and the same lamp chip.

3.There are the following commonly used scanning methods, 1 16 scan, 1 8 scan, 1 4 scan, static scanning, the first three are dynamic scanning, 16 lines of scanning, 8 lines of scanning, 4 lines of scanning.

4.The working principle of scanning is to use the visual persistence characteristics of the human eye to light up each line of the LED display in a very short period of time. It's just that the lights on the screen aren't actually all on, but we look like they're all on, just like animations, and if it's slow, it looks like it's a picture, and if it's fast, it's like moving.

Static scanning, copying, and moving.

The state sweep is a static drive and a dynamic state drive.

From the output pins of the driving IC to the pixels, the control of "point-to-point DAO" is called static drive; The "point-to-column" control from the output pins of the driver IC to the pixels is called the sweep driver, which requires a line control circuit. It can be clearly seen from the driver board that the static drive does not need a line control circuit, and the cost is high, but the display effect is good, the stability is good, and the brightness loss is small; The scanning drive requires a line control circuit, but the cost is low, the display effect is poor, the stability is poor, and the brightness loss is large.

Hunan New Asia Sembcorp.

In the program, the static display of the digital tube is just a simple assignment of value, OK, in general, the pins of the single-chip microcomputer are enough; Dynamic scanning, on the other hand, uses repetitive scans to solve the problem of insufficient pins. Hope you can understand!