Qualcomm launched its new flagship mobile platform Snapdragon 845 in the morning of December 6, Hawaii time (in the morning of December 7, Beijing time) GPU、 There has been great improvement in "traditional projects" such as baseband and ISP, as well as great progress in AI, security, XR and other fields.
The detailed parameters of Snapdragon 845 are as follows:
Kryo 385 CPU
Four performance cores with main frequency up to 2.8GHz (25% performance improvement compared with the previous generation)
Four efficiency cores with main frequency up to 1.8GHz
2MB shared L3 cache (new)
3MB system cache (new)
10 nm LPP FinFET process
Qualcomm Spectra 280 ISP
Support Ultra HD Premium shooting
Qualcomm Spectra module scheme supports active depth sensing
Motion compensated time-domain filtering (MCTF) video capture
Multi frame noise reduction
High performance shooting up to 16 million pixels @ 60fps
720p @ 480fps slow motion video recording
ImMotion Computational Photography
Adreno 630 visual processing subsystem
Compared with previous generation products, image/video rendering is increased by 30% and power consumption is reduced by 30%
Indoor scale six degrees of freedom (6DoF) and real-time positioning and map building (SLAM)
Adreno visual focus, including tile rendering, eye tracking, multi view rendering, fine grain preselection
2K x 2K @ 120Hz, 2.5x display interface data throughput improvement
Enhanced 6DoF, supporting gesture tracking and controller
Qualcomm ® Hexagon ™ 685 DSP
Third generation Hexagon Vector DSP (HVX) for AI and image
Third generation Qualcomm All Way Aware ™ Sensor hub
Hexagon Scalar DSP for Audio
Snapdragon X20 LTE Modem
Support 1.2 Gbps Gigabit LTE Category 18
Support for licensed auxiliary access (LAA)
Support citizen broadband wireless service (CBRS) to share spectrum
Support dual card dual VoLTE (DSDV)
connect
Support multi gigabit 11ad Wi Fi and diversity antenna
Integrated 2x2 11ac Wi Fi, supporting dual frequency concurrency (DBS)
11k/r/v: enhance the mobile performance of operation level Wi Fi, quickly establish connections, and ease congestion
Proprietary enhanced Bluetooth 5 supports ultra-low power wireless earplugs and simultaneously broadcasts audio to multiple terminals
Security processing unit
Biometric recognition (fingerprint, iris, voice, face)
User and application data protection
Integration solutions, such as integrated SIM card, payment and others
Qualcomm Aqstic Audio
Qualcomm Aqstic Audio Codec (WCD934x):
Play:
Dynamic range: 130dB, THD+N: -109dB
Support native DSD (DSD64/DSD128), pulse code modulation (PCM) up to 384kHz/32bit
Low power voice activation: 0.65mA
sound recording:
Dynamic range: 109dB, THD+N: -103dB
Sampling: up to 192kHz/24bit
Qualcomm ® Quick Charge ™ 4+
Parameter resolution:
In terms of parameters, Qualcomm Snapdragon 845 is full of highlights. The first and most obvious improvement is the use of Samsung's second-generation 10nm LPP(Low Power Plus) FinFET process, which is 10nm higher than that used by previous flagship SoC such as Snapdragon 835 and Exynos 8895 LPE(low-power early) FinFET should be more advanced and its power consumption control will be better.
Not surprisingly, Snapdragon 845 uses a new CPU core—— Kryo 385 The model is very different from the Kryo 280 of the previous generation. Snapdragon 845 has four Three launches Large core, dominant frequency up to 2.8GHz QUALCOMM Claims Improved CPU Performance 25%~30% . In addition, we know that ARM's Cortex-A75 is also a three transmit kernel, Love to play computer games It is speculated that the two may be inextricably linked. Four more 1.8GHz Qualcomm also mentioned the use of ARM DynamIQ Therefore, the small core estimation is also related to Cortex-A55. The CPU part is enhanced and each CPU core has Independent L2 cache , all cores Shared 2M L3 cache 。
high pass Spectra 280 ISP , belongs to the third generation high-performance Spectra ISP of Qualcomm, which is supported by Snapdragon 845 4K@60fps video recording (i.e. meet the Ultra HD Premium standard), support 16 million pixels @ 60fps High performance shooting (multi frame synthesis), 720P@480fps Slow motion It can be seen from the video recording that there is a great improvement compared with Snapdragon 835.
Adreno 630 In the past, we used to call Adreno series chips GPUs, while this generation of Qualcomm is more "advanced" by definition, called "visual processing subsystem". Improved graphics performance 30% At this level, it is about the same as the graphics performance of Apple A11 Bionic. In addition, it also brings 2K x 2K @ 120Hz, 2.5 times the data throughput of the display interface, and the enhanced 6DoF, which supports gesture tracking and controller. Snapdragon 845 is also QUALCOMM's third generation SoC with AI module. Officially, the AI performance is three times that of Snapdragon 835. When using AI related functions, it requires the cooperation of Adreno 630, Hexagon 685, Kryo 385 and other modules.
new Hexagon 685 DSP , providing good support for the AI function of Snapdragon 845.
X20 LTE In fact, this modem has been released by Qualcomm before, but Snapdragon 845 is the first SoC equipped with this modem. provide 1.2Gbps Gigabit Network (LTE Cat. 18 standard), supporting dual cards Dual VoLTE 。
In addition, Snapdragon 845 also supports 11ad WiFi ， 2x2 11ac Wi-Fi as well as Bluetooth 5 (For example, the mobile phone can be connected to the left and right earphones at the same time) and many other advanced wireless connection technologies.
Snapdragon 845 also has a great improvement in security, introducing SPU（Secure Processing Unit） The security processing unit chip, also known as the "security encryption chip", stores fingerprint, iris, voice, face and other information in this unit. At the same time, user and data protection, integrated SIM card and other security functions will also be reflected in Qualcomm's SPU chip.
In terms of supporting audio codec, Snapdragon 845 supports native DSD (DSD64/DSD128) and PCM 384kHz/32bit music as the previous generation products. In terms of objective parameters, dynamic range: 130dB, THD+N: -109dB， Using Qualcomm WCD9341 Chip (In fact, the Snapdragon 835/Snapdragon 845 does not integrate the Aqstic audio codec, so manufacturers can freely choose different codec combinations. For example, at present, the domestic brands of Snapdragon 835 mobile phones are equipped with WCD9335). Finally, Snapdragon 845 also supports Quick Charge 4+ Fast charging, known as 50% recharge in 15 minutes 。
Finally, we present the official Qualcomm Snapdragon 845 information flow:
Follow our Weibo @ Love Computer
Follow our WeChat official account: playphone
Of course, we also pay attention to our Bilibili account: love computer
