The first batch of Snapdragon 8 phones are stable, we can change our focus

The whole process of "King of Glory" is 120fps, and the heat is well controlled.

We just tested the new generation of Snapdragon 8 mobile platform phones, and got such a common conclusion. Several flagship phones from Xiaomi, Real Me, and iQOO are currently performing very well, and are at a level that you can buy depending on your budget and your preferences.

Snapdragon 8 from the release, to the actual measurement of the engineering machine, and then to the mass production machines of major brands, it is actually with suspense. Many people are very worried about its actual performance and heat generation, but as soon as the Snapdragon 8 was released, Aifaner participated in the actual measurement of the engineering machine. At that time, there were two things that were impressive: the graphics performance improved a lot. , Heat control is quite good.

▲ The frame rate curve of Xiaomi Mi 12 Pro running "King of Glory"

The first batch of Snapdragon 8 mass-produced machines has also been launched. Many first reviews, including Ai Faner, focused on performance and heat dissipation. Everyone’s conclusions are similar: Snapdragon 8, which is pretty good. calm down. At the same time, while keeping "calm", it also continued the performance of the engineering machine, and performed well in the peak performance and continuous performance of the difficult game.

However, it is now 2022. We can actually pay attention to the other things of the Snapdragon 8 mobile platform, which are hidden in the details but constantly affect the experience.

A less noticed example is that in 2021, many of the first camera phones are from Snapdragon platform phones, such as the first 10-bit HEIF camera phone, the first 4K 120FPS camera phone, the first 1-inch outsole phone, DXO Top mobile phone and so on.

Similar to the baseband of the Snapdragon, the image part of the Snapdragon mobile platform is not under the spotlight in the foreground, but it is really reassuring as a behind-the-scenes.

On the Snapdragon 8, its image features have been upgraded again, and many shooting functions that were out of reach a few years ago have become possible on mobile phones between square inches.

Now many mobile phones have started shooting with 10bit color depth (usually 14bit data is processed by the mobile ISP), and they are also equipped with a corresponding 1 billion color screen. Compared with the previous 16.7 million color photography and display, this is a time Huge progress, there is no harm if there is no contrast. When the sun is setting, or the sea and sky are all the same, the delicate natural transition of 1 billion colors is beyond the latter's reach.

But in theory, the number of colors in nature is infinite. The 1 billion colors brought by 10bit color depth is not the end of photography, but one of the key milestones. The road behind can actually extend infinitely. Now the Snapdragon 8 mobile platform has been equipped with the first smartphone ISP (Image Signal Processor) that supports 18bit color depth.

Compared with the three 14bit ISPs of the previous generation Snapdragon 888, the dynamic range data that the three 18bit ISPs of the Snapdragon 8 can handle is 4096 times that of the former, which means that mobile photography is one step closer to reality.

Dolby Vision (Dolby Vision) is currently the best HDR video format, and it is also the format with the highest requirements for shooting and playback equipment. For example, it requires a 12-bit color depth, so it can be very good if it supports 18-bit computing and processing on the ISP. Dolby Vision filming was carried out locally.

Night scenes have always been the traditional strengths of Android phones. After the mobile ISP is upgraded to 18bit, the night scenes of Snapdragon 8 phones have a higher upper limit. This is because we see a bright and clean night scene photo, which is actually taken by the mobile phone. Multiple photos with different exposure levels are synthesized. Some photos are responsible for the purity of the picture, and some are responsible for the brightness of the picture. In the end, they complement each other. Previously, the low-light engine of Qualcomm Snapdragon used to take 6 photos for synthesis. Thanks to the new 18bit ISP, this engine has been upgraded to a "super multi-frame engine", which can take 30 photos at a time for synthesis. This is a good Snapdragon. The night scene level of Dragon Mobile can be improved again.

▲ Xiaomi Mi 12 Pro equipped with Snapdragon 8 mobile platform, excellent night scene performance

As mentioned earlier, mobile photography is often a game of data and calculation. 4K 120fps records twice as many pictures as 4K 60fps, and 8K HDR10+ has a larger amount of information per frame, which also marks the transition from being able to shoot 8K videos to being able to shoot good 8K videos.

At the same time, the 18bit ISP of Snapdragon 8 also supports an interesting feature: one lens can shoot 8K video while also shooting 64 million pixel photos. The reason is also very simple, because the data processing bandwidth of the 18bit ISP is greatly provided. This generation of Spectra ISP can process 3.2 billion pixels per second. The road is wider and the road is better. It supports multiple heavy-duty trucks.

The advancement of the underlying technology can bring the blessing of many features. The "video super resolution" supported by 18bit ISP can preserve more details of the picture after digital zooming. The export of 18bit RAW images provides professional photographers with a broader post-production space… .

There are many similar image technology updates on Snapdragon 8. For example, the facial recognition feature points have been increased from 100 to more than 300. Not only is the recognition faster, but the related expression capture and emotion judgment are also more accurate. Ultra-wide-angle shooting can now reach 140-degree photos without stitching, and the algorithm can correct edge distortion.

The image support of this generation of Snapdragon 8 mobile platform can basically be described as "two steps faster than the mainstream". Of course, this is the self-cultivation of a flagship chip, and this self-cultivation is also reflected in more secret corners.

Sound performance is a mobile phone feature that we always accompany us, but it is easy to be overlooked. In the new generation of Snapdragon 8, there is also a great improvement in the sound feature support.

Once upon a time, we mentioned that wireless headphones are connected to mobile phones to listen to music. Basically, we only hope to listen to the sound. We don't have much hope for the sound quality. Thanks to the fact that the treble is not thorny, and the bass is not stuffy.

However, the field of interaction between smart phone manufacturers has been involved in smart watches and wireless headsets. Now it is not difficult to find a wireless headset with low latency, long battery life, good noise reduction and good sound quality. Based on the Snapdragon 8 mobile platform and Qualcomm's FastConnect 6900 mobile connection system, the Snapdragon listening technology released last year has also been enhanced.

The two most noteworthy features are "CD-level lossless wireless music" and "Ultra-low-latency voice synchronization backhaul". The former is quite easy to understand, that is, the sound quality has been further improved, approaching the wired level. The latter allows the game voice communication experience to approach or exceed the human perception limit, making the multiplayer team game experience more immersive.

The game is a complex of audio and video, and it is also a part of considering the comprehensive strength of the mobile platform. As I said at the beginning, the graphics performance of this generation of Snapdragon 8 has greatly improved, which has laid a solid foundation for its gaming performance.

In this traditional strength of Qualcomm Snapdragon, the game features are worth noting and not only the frame rate benchmark.

For example, Variable Resolution Rendering (VRS), this technology can be compared to the variable refresh rate in display technology. In a picture, in fact, many places do not need such high resolution, such as blanks in the background of the picture, blue sky, etc. It does not matter if the resolution is lower, while the road and grass in the middle of the picture do not need to be as fine as the subject. , The center of gravity of the picture and vision can retain the highest resolution. Therefore, adjusting the resolution for different parts of a picture and doing fine management can reduce the load on the GPU. Under the same image quality, it can increase the frame rate and reduce the power. Consumption. VRS is supported on Snapdragon 888 for the first time, and now the Snapdragon 8 platform can support a more powerful VRS Pro, which is the advanced version of variable resolution rendering, which can provide game developers with finer particles when tuning game performance度控制。 Degree control.

Not only do players pay attention to predicting the game, the chip also has to predict the game screen. Another game feature that can increase frame rate and reduce power consumption is the Adreno image motion engine, which uses historical frame data and GPU to optimize motion estimation. Games that support this feature can generate more frames, allowing games to run at double frame rates. , While maintaining nearly the same power consumption.

Reality and immersiveness have always been the goal of game development. Therefore, spatial audio, stereo rendering, and ambient light technologies have also been born in recent years, all for the purpose of "representing the real." These features supported by Snapdragon 8 can make the gunshots, footsteps, and explosions in the shooting gun battle game clear and directional, making the smoke from the grenade explosion or the clouds and fog floating in the mountains more in line with the laws of physics, allowing the light to shoot directly The effect of refraction and reflection is close to the real world…..

▲Leitz Looks mode

It can be seen that AI is inseparable when talking about images. When talking about sound, games are an important scene. When talking about games, sound is an inseparable part. Therefore, in many classification scenarios, technologies are intersected, and AI is universal. The AI ​​capabilities of Snapdragon 8 are almost everywhere. The dominant one is the built-in Leitz Looks mode, which allows the phone to take Leica-style German photos; AI can also track the user’s health, such as mental health, through sound. Or whether the user has asthma, etc. There are more places where AI can provide hidden power, and even if the signal is not good, it can be optimized by AI: For example, the Snapdragon 8 can intelligently detect the user's holding posture, thereby adjusting the antenna performance to optimize the signal.

Today, when the Snapdragon 8 mobile phone has been launched on a large scale, looking back at its new features is actually a process of reviewing the past and learning the new. If you lengthen the timeline, you can feel the process of technological development more. There is one technical detail that impressed me: the audio part of many games all run on the CPU, but many game masterpieces have a lot of audio objects, even up to 128. If they all run on the CPU, the load and power consumption are not small. ; So Qualcomm worked with partners to transfer these additional CPU tasks to the Hexagon processor to achieve better results and higher energy efficiency.

Variable resolution rendering, image motion engine and other new features are all like this. A technology from scratch, from coarse to fine, is not only a technological process, but also a leap in experience.

In the plastic greenhouse of destiny, every cabbage that has been sprayed with too much pesticide once had a dream of becoming a pollution-free organic vegetable.

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