What are the factors that affect video card power consumption?

What are the factors that affect the power consumption of the video card?

① Display core (GPU) architecture (number of transistors);

② shows the core process;

③ the "heap" level of the video card

Overall, the larger the number of transistors integrated on the graphics card GPU (because of the higher the precision of the architecture), and the more advanced the process of the graphics GPU (65nm->55nm->40nm->32nm) is the smaller the current required to drive the GPU. , the calorific value of natural small, low power consumption, the graphics card PCB substrate on the more sophisticated electronic components, the calorific value (power consumption) will be increased accordingly.

Video card "Analog power" good or "digital power" better

In the mature design and control cost considerations, the midrange or the following graphics cards, and a considerable part of the high-end graphics cards are all using analog power mode, and the so-called "digital power" is often used only for high-end graphics cards, is a highlight of high-end graphics card is a pile of identity.

One said that digital power can drive the current per phase can reach 40A, far exceeding the analog power supply universal 30A limit. With a number of digital power supply can drive a larger current to obtain a better video card overclocking.

Second, the use of digital graphics card with a side inductance coupled with its small size, can reduce the PCB substrate and better layout, and more excellent electrical performance. But the disadvantages are obvious, even if the so-called digital power supply, is still a PWM chip, but in order to meet the digital power supply high-frequency job requirements, it is bound to use a higher level of electronic components to assist the work, such as row dare, ceramic capacitors and so on, then greatly increased the manufacturing costs, but also because the more sophisticated electrical components Can not be avoided is the problem of heat dissipation, although the digital power supply can withstand high temperatures, but the temperature for overclocking, and even components of their own life will be greatly reduced, but also to higher requirements of the cost of cooling investment.