The mobile phone market in the second half of 2017 began to emphasize the term "artificial intelligence." Apple and Huawei, which have mastered the capabilities of self-developed chips, have released A11 Bionic and Kirin 970 processors with artificial intelligence, and artificial intelligence has been applied to the flagship products that will be launched.
The industry is also closely watching the other two high-end chip giants Qualcomm and Samsung, but recently Qualcomm also officially released the Snapdragon 845, and finally added artificial intelligence to the chip. For the highly competitive mobile phone market, the arrival of Qualcomm Xiaolong 845 has been attributed to the late arrival.
Huawei has released the annual flagship soc unicorn 970, which uses the full line 10nm FinFET process. In this way, it will naturally be compared with Qualcomm Snapdragon 835. So which is the Kirin 970 and the Snapdragon 835? Here are the comparisons between Kirin 970 and Xiaolong 835 and Exynos 8895!
Five core technology improvementsQualcomm put AI and immersive multimedia experience at the core, and elaborated on the five aspects of immersion, AI, connectivity, security and performance.
(1) Performance improvement of 30%
CPU part, Snapdragon 845 is built with Samsung 10nm LPP technology, upgraded to Kryo 385 core, still eight-core architecture, four large cores up to 2.8GHz, performance increased by 25%-30%; four small core frequencies can be Up to 1.8GHz, performance increased by 15%.
In the GPU part, the Snapdragon 845 was upgraded to the Adreno 630. Compared to the previous generation, the performance was improved by 30%, the energy consumption ratio was increased by 30%, and the video processing efficiency was increased by 2.5 times.
There is no change in memory support, and the ISP upgraded from Spectra 180 to Spectra 280.
Comparison of specifications of Xiaolong 845 and Xiaolong 835
(2) Audio-visual photography immersive experience
The Opteron 845 integrates the Spectra 280 ISP and the Adreno 630 vision processing subsystem. Capable of capturing up to 64 times higher dynamic range color information than the Snapdragon 835, it supports 10-bit color depth over 1 billion shades, enabling images to be displayed in 1 billion shades of color.
The Adreno 630 supports focus algorithm technology, which intelligently recognizes the focus of the human eye and saves power. With visual tracking, you can ensure that the camera is still in the best rendering state regardless of how the camera moves.
The ISP also integrates the second-generation ISP chip Spectra 280, focusing on improving performance in low-light environments, supporting mobile platforms with ultra-high-quality video, and frame rates up to 60 fps.
Spectra 280 supports 10bit color depth, and the color gamut has been upgraded from Snapdragon 835's Rec.709 to Rec.2020. It can support more colors, allowing photos to achieve higher brightness, saturation and contrast. It can shoot 720pps at 720p slow. Action video.
(3) Focus on optimizing artificial intelligence (AI)
Snapdragon 845 is Qualcomm's third-generation AI mobile platform. Compared with the previous generation system-on-chip (SoC), Snapdragon 845 brings nearly three times the overall performance improvement of AI.
Xiaolong 845 also added Apple's Face ID function, which Qualcomm calls XR, which enables 3D modeling and biometric recognition of faces.
For the first time, it supports room-scale six-degree-of-freedom (6DoF) and real-time positioning and map construction, which provides higher operability for AI facial recognition. There will be no technical obstacles for future Android phones to support Face ID.
(4) Quick connection in the "5G" era
The Snapdragon 845 supports LTE, Wi-Fi and Bluetooth features and integrates the second generation Gigabit Opteron X20 LTE modem. Supports up to LTE Cat.18, which is a 1.2Gbps download rate, supports 5CA carrier aggregation and 4*4 MIMO, as well as LAA.
Compared with the previous generation, it can achieve 30% of the operation-grade Wi-Fi network capacity utilization, and can reduce the power consumption of Wireless earphones by up to 50%.
(5) Join the security processing unit
Introduced a hardware isolation subsystem, the Secure Processing Unit (SPU), which adds security features such as vaults to the layer, which enhances biometric authentication security and user/application data key management to encrypt important information. The biggest feature of SPU is to support biometric identification, which almost allows users to forget their passwords.
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