​If you talk about the most inward roll of the machine circle in the past two years, it must still be taking pictures. In addition to the roll outsole and the roll joint name, many manufacturers have also joined the lineup of self-developed chips.

So today, let’s talk about the new generation of self-developed chip V2 recently released by vivo, and see what different upgrades vivo can bring us this year. In addition, the X90 series debuted Dimensity 9200+V2 basically did not run, and began to look forward to the performance of vivo, which aims to impact the strongest flagship of the year.

​​Some people may why does vivo use self-developed chips? The SoC of the mobile phone already provides functions such as CPU, GPU, NPU and etc. Wouldn’t adding another chip increase power consumption? Either way, adding a new chip is not necessarily to increase power consumption, but sometimes it can save power consumption and achieve better results.

​SoC is like a bus, anyone can take the bus, but the speed is not so fast, and the car is large and consumes fuel. And vivo’s self-developed ISP chip is like a motorcycle. It only carries customers from the camera department, and the person can leave. It is efficient, and the car is light and fuel-efficient. Self-research is also equivalent to exclusively modifying the vehicle according to the road conditions, so as to make the car run better and more stably.

This is why various manufacturers are developing their own chips. In addition to achieving better results, you can also strengthen the functions you need, which is difficult for general-purpose SoCs , so everyone is accelerating the development of self-developed chips.

​Is there no shortcomings in vivo’s ISP chip? There are also. From V1 to V1 + , vivo still uses the traditional ISP architecture. This architecture filter is generally designed by hand. Although it can process a large amount of data in a short time , it can only solve known and specific problems. It’s like you can add, subtract, multiply and divide algorithms, but without a calculator, it’s very troublesome for you to open the square root, and you won’t be able to count. then what should we do? Some people may have thought, isn’t this what AI computing is best at?

​This is the core upgrade of vivo ’s V2. It has been upgraded from the previous traditional ISP architecture to the AI -ISP architecture , and an AI computing unit has been added to the V2 chip, thus making up for the inability of the traditional ISP to handle. ” Root Number” problem.

In order to avoid the efficiency problem of the AI ​​computing unit of the traditional SoC, that is the NPU. vivo chose a DLA accelerator that is more suitable for imaging operations . If the N PU is a bus, the ISP is a motorcycle and the DLA can be used . Understand it as a car, compared with ISP, it can achieve more complex functions, and the efficiency is also higher than NPU.

Now, the V2 chip can process more and more complex data, but where is that data stored? The memory is indeed a place to store data, but in the traditional architecture, the memory and the V2 chip are separated and communication also needs to pass data through the motherboard, which makes it difficult for the memory to meet the amount of data required by the chip. It’s like you live on the 5th floor, but pick up the goods on the 1st floor, running around, low efficiency and high power consumption. There must be a small partner who has come up with a solution. Wouldn’t it be enough to store the goods on the 5th floor.

​vivo also thinks so, this is the on- chip SRAM (high speed and low consumption cache unit), a special storage space is designed inside the V2 chip, and you like to use it at your fingertips, eliminating the need for the chip to go to the memory to find data. Compared with the design of the DDR external memory used by the NPU of the traditional SoC, the energy efficiency ratio is improved by 200%.

​The larger the chipHaving said so much, do you feel that SoC is useless? No, the flexible computing capability of N PU is still incomparable with V2 , a specialized image processing chip. Therefore, the plug-in V2 chip is specially responsible for high-density computing, and it is complex and requires more flexible computing, and it also needs to be submitted to the NPU of SoC.

However, it is not that both chips are soldered to the motherboard to solve the problem. Because the architecture and instruction set between different, just like a motorcycle and a public car master, one speaks French, the other speaks Chinese, and there is no way to effectively allocate work, so mutual cooperation may not only be 1 +1 > 2 , or even 1 +1 < 2, it’s not worth it.

So in addition to modifying the chip architecture, vivo also needs to redesign the communication scheme between chips, which is the FIT (Frame Info Tunneling) dual-core interconnection technology mentioned at the press conference.

​FIT divides large and complex algorithm modules, and deploys small model parts with low computing power density and complex network structure, such as binary linear equations, on the NPU of SoC through software. The large model part of , that is, the square root of the addition and subtraction multipliers, is deployed on the self-developed chip V2 chip, so as to achieve the optimal solution of work distribution. It’s best to do their jobs.

Of course, vivo has also done a lot of dual- core tuning with MediaTek Dimensity 9200 . For example, vivo encapsulates the NeuronRuntime software acceleration framework provided by MediaTek in the self-developed VCAP heterogeneous computing acceleration platform. In this way, the camera ultra-clear document, live text, offline voice input method, etc are realized.

​And offline voice, in addition to the high requirements for the recognition rate, does not need to be connected to the Internet, and also ensures privacy.

Of course, the core and simplest purpose of V 2 is to let you take a better photo. ​Because the CMOS of a mobile phone cannot be infinitely larger after all, and the lens cannot be infinitely longer. We all know that the big one can kill people, because the big bottom can accept more light. The small bottom of the mobile phone is obviously not enough.

At this time, it is necessary to take more photos and synthesize through the algorithm to make up for the shortcomings of the small bottom. And whoever can shoot more and calculate faster in a unit time, can come up with clearer and more accurate night scene photos.

The purpose of the V2 independent chip is to make the mobile phone calculate better, and to enhance the mobile phone’s photography through algorithms. This is also the era of computing imaging opened by mobile phones.

In fact, from Apple’s A series, Huawei’s Kirin, to Xiaomi’s surging to vivo’s V series, OPPO’s Mariana. Self-developed chips have become the core competition for mobile phone manufacturers and it is also in the era of the mobile phones.

The necessary challenges based on the market are the embodiment of the core competitiveness of manufacturers. Following Huawei, the performance of vivo’s V -series chips can be regarded as a masterpiece of domestic chip making. vivo X90 series, the strongest flagship in vivo history, will soon be equipped with the V2 chip.

Of course, the above are just the V 2 upgrades that we interpret according to the communication meeting. How will it perform? We will bring you the vivo X90 series mobile phones to experience vivo for the first time. Everyone may wish to look forward to it.

It is reported that iQOO’s next-generation flagship will be equipped with vivo’s self-developed chip V2 just released yesterday. I think it is inevitable that the iQOO 11 series V2 will be based on the degree of careful training of iQOO.

Speaking of self-developed, it is indeed necessary. Just look at vivos efforts to develop self-developed chips in the past 2 years. In terms of video, the X series uses self-developed chips, self-developed algorithms and cooperates with Zeiss to stabilize the flagship position of video.

In terms of performance, iQOO always makes iQOO the best experience among the performance flagships of the same grade.It turned out that developing chips can be said to be a manifestation of scientific research strength, but now it can be said to be a very forward-looking awareness of risk prevention.

Rudhra Nandu

By Rudhra Nandu

I write about newly launched and upcoming smartphones and gadgets. Well known Tech Enthusiast. Covering Tech news and leaks from last 3 years on Twitter.