Memory and computing power

1. Now it is suggested not to mine bitcoin at will. After all, because of the problems in the country, the price of bitcoin in China is not good. Moreover, the computing rate of ordinary home computers can't keep up at all, and they may not be able to dig out a bitcoin for hundreds of hours in a row. During this period, the electricity and hardware consumption are not worth the loss.

2. 1. R470-jt01 has been on the market for some time. The minimum price we need here is 5800 yuan
2. The graphics card of r518 is ATI
mobility
radon
HD4650
GDDR3
1g video memory
the graphics card of R470 is NVIDIA
geforce
g210m
GDDR3
512M video memory
3. I don't know whether you mean notebook or graphics card. I guess you should pay more attention to the battery life, So when you ask this question, generally speaking, a 15.6-inch notebook costs more electricity than a 14.1-inch notebook
4. Different cities have different prices. The lowest price of r518 here is 5600 yuan
in order to facilitate your choice, I will tell you two differences, that is, in addition to the difference between the graphics card and the video memory and the operating system, there are also differences in the number of USB interfaces: R470 is 3, r518 is 4
in the end, I don't know whether you are looking at dd02 or ds03 of r518. If it is ds03, there is another difference: ds03 doesn't have Bluetooth
I hope I can help you. If you have any questions, please ask me directly.

3. There are many differences between integrated graphics card and independent graphics card in terms of CPU utilization rate and memory utilization rate. Understanding the differences and advantages and disadvantages between them will help us to have a definite aim when we choose graphics card. The main differences are as follows:

1: CPU occupancy rate independent graphics card has its own GPU, a lot of image processing does not need to be done by CPU, saving CPU time; Integrated graphics card uses CPU to calculate image data for you, which takes up part of CPU resources

2: graphics computing power: the graphics computing power of independent graphics card is much better than that of integrated graphics card, because when playing 3D games, it needs a lot of complex computing, so the integrated graphics card is not able to do it. In order to exchange for smooth game speed, we have to sacrifice the image quality

Three: memory utilization: independent graphics card comes with its own graphics memory, while integrated graphics card needs to take part of the system memory as graphics memory, so it is better to eat memory. If the memory capacity of the machine with integrated graphics card is not large, the running data will be slower than that of the independent graphics card

Four: the running frequency of the integrated graphics card of rendering pipeline is similar to that of the independent graphics card of the same level, and the high-quality graphics card can also exceed the frequency; But the biggest disadvantage of the integrated graphics card is that its rendering pipeline is much less than that of the independent graphics card. Generally, there are only one or two pipelines, which limits the display of the graphics card, so its basic performance is not as good as that of the independent graphics card< As far as the problem is concerned, the independent graphics card is separated from the motherboard and inserted into the AGP pciex16 slot, while the integrated graphics card is attached to the motherboard as the name suggests. The integrated graphics card integrates the display chip into the motherboard, and the video memory is shared in the physical memory. The independent graphics card is inserted in PCI, AGP, pciex16 slots, with independent display chip and memory

VI: the price of integrated graphics card motherboard is cheaper than that of independent graphics card + motherboard.

4. The 2400g Vega has no video memory, but many mining tools can't run directly with such integrated graphics cards, and even if they can, it's useless. People can connect at least six pieces with a rx560 machine, but 2400g can't be used together at all. A 2400g must correspond to a motherboard, which is much higher than the cost of graphics card.

5.

With the increasing performance of display chip, its data processing ability becomes stronger, which makes the requirements of data transmission capacity and transmission rate become higher, and the requirements of graphics card for graphics memory are also higher. At present, most of the graphics cards use gddr2-5 generation of graphics memory

nowadays, the performance of graphics card is getting stronger and stronger, which can't ignore the fact that the development speed of display chip is fast, but the frequency, bit width and bandwidth of graphics memory also restrict the overall performance of graphics card. The advanced display memory can make the display chip work with all its strength and make the output picture smoother

the higher the frequency of video memory, the faster the data can be recorded and read on the video memory. The frequency of video memory provided by different video memories also varies greatly. The early video memories include 133MHz, 166MHz, 400MHz, 500MHz, 600MHz, 650MHz, etc

at present, there are 800MHz, 1200MHz, 1600MHZ, 2200MHz and even higher middle end procts. The method to calculate the equivalent frequency is to take the frequency of video memory * generation. For example, if the frequency of gddr5 video memory is 2000MHz, the equivalent frequency of 8000MHz can be obtained from 2000 * 4

extended data:

working principle

the working principle of the graphics card is: before the graphics card starts to work (graphics rendering modeling), it usually transfers the required material and texture data to the video memory

When

starts to work (modeling and rendering), these data are transmitted through AGP bus, and the display chip will extract the data stored in the display memory through AGP bus. In addition to modeling and rendering data, there are a lot of vertex data and work instruction flow to be exchanged, and these data are converted into analog signals and output to the display terminal through RAMDAC, In the end, it's the image we see

With the improvement of the performance of the display chip, the data processing ability of the display chip becomes stronger and stronger, which makes the data transmission capacity and transmission rate of the video memory more and more demanding, and the video card also has higher requirements for the video memory. At this time, the exchange capacity and speed of the video memory are very important for the performance of the core of the video card, and how to effectively improve the performance of the video memory has become the key to improve the performance of the whole display card

6.

The essence is the same, using storage particles to store data

1: then the GPU on the graphics card reads the storage particles on the VRAM; The CPU reads the storage particles in the memory - because GPU and CPU can only recognize the data from VRAM and ram, not directly from the hard disk

2: -- short for display memory (similar to motherboard memory). As the name suggests, its main function is to temporarily store the data to be processed by the display chip (GPU) and the processed data. The more powerful the graphics core is, the more memory it needs. The previous video memory is mainly SDR, the capacity is not large. And now the market is basically using DDR3 specifications, in some high-end cards are using better performance DDR4 or ddr5 generation memory

3: video memory is mainly provided by traditional memory manufacturers, such as Samsung, Hyundai, Kingston, etc- Ramrambus DRAM is a memory specification first proposed by Rambus company. It adopts a new generation of high-speed and simple memory architecture, and is based on a RISC (received instruction set computing) theory, which can rece the complexity of data and improve the performance of the whole system

4: the graphics card of the notebook will not be very good, 128 and 256 indicate the psychological feeling, because the bit width of the 256M graphics card of the notebook is 64, and the effect is no big difference with 128. 7000 yuan, choose a 320G hard disk and 2G memory. The main frequency is higher. This is a quick and light one

7.

There is no difference between the two. Total available graphics memory refers to video memory

The function of video memory is to store the rendering data processed or to be extracted by the graphics chip. Like the memory of a computer, the video memory is used to store the graphic information to be processed

before the graphics card starts to work, it is to transfer the required material and texture data to the video memory

in terms of the performance of the graphics card, with the processing power of the display chip becoming more and more powerful, especially in today's large-scale 3D games and professional rendering, more and more data need to be temporarily stored, and the required memory capacity is also increasing, which will also affect the performance of the graphics card to a certain extent

for example, when the display core is strong enough and the memory capacity is small or slow, there are a lot of large texture map data to store. If the memory capacity is not enough to store these data, the display core will only be idle for some time to wait for the data to be processed, This affects the display core performance, which also affects the performance of the graphics card

extended data

memory generally uses semiconctor storage units, including random access memory (RAM), read-only memory (ROM), and cache. Just because ram is the most important memory SDRAM: SDRAM has 168 pins, which is the memory used by Pentium and above

SDRAM locks CPU and ram together by the same clock, so that CPU and RAM can share a clock cycle and work synchronously at the same speed. The rising edge of each clock pulse starts to transfer data, and the speed is 50% higher than that of Edo memory

DDR (double data rate) ram: an updated proct of SDRAM, it allows data to be transmitted on the rising and falling edges of the clock pulse, so that the speed of SDRAM can be doubled without increasing the frequency of the clock