Review of Qualcomm Snapdragon processor 845

Almost ends in 2017. All companies showed their flagship smartphones. Basically the news was released with top-end Qualcomm Snapdragon processor 835. And recently, in Qualcomm’s Tech Summit 2017, the company showed the world its new flagship chipset Qualcomm Snapdragon 845.

The new processor has improved almost everything from new technology to improved modem. The entire press release new product focused on multimedia, virtual reality and security. In this article, we have collected all the necessary information about the new processor. Let’s get started.

Characteristics of the processor Snapdraogn 845

  • Number of cores: 8 cores Kryo 385
  • Graphics: Adreno 630 GPU
  • Architecture: 64 bit process technology is 10 nm
  • Clock speed: 2.8 GHz
  • Support memory: LPDDR4x, 4×16-bit
  • Display support: 4K Ultra HD, 60 fps
  • DSP: Hexagon 685
  • The image processor camera: Spectra 280 (dual 4-bit ISP)
  • LTE modem: X20
  • Bluetooth: 5.0
  • Navigation: GPS, GLONASS, Beidou, Galileo, QZSS and SBAS
  • Sound: Qualcomm Aqstic Audio (384 kHz / 32-bit)
  • Charging: Quick Charge 4.0/4.0+

Snapdragon 845 boasts a new architecture of CPU cores Kryo 385 and the updated Adreno GPU 630. The number of transistors in a single chip reaches 1.6 billion. The chip is set on the basis of the 10-nm process Samsung LPP LPF FinFET. As in the past year, core Kryo 385 based on ARM Cortex technology. Thanks to this new processor, according to Qualcomm, will have about 25 degrees of the improvements in performance compared to the Snapdragon 835. Alas, in AnTuTu, this SoC has not yet managed to test.

As expected, the new processor architecture based on ARM technology DynamIQ and the latest developments Cortex Cortex A75 and A55. To expand opportunities between improved processes and the exchange of memory with different types of nuclei in a common cluster, added 2 MB of shared cache L3.

As for the architecture used here is proven big.LITTLE. Four productive core clocked at 2.8 GHz, combined with four energy-efficient cores with a frequency of 1.7 GHz. Below is a table showing the main differences between SD 835 and its two predecessors. For the quality of the sound and Qualcomm Aqstic Audio (384 kHz, 32-bit).

Comparison Snapdragon 845, 835 and 821

Snapdragon 845
Snapdragon 835
Snapdragon 821

Kernel
ARM Cortex — Kryo 385
ARM Cortex — Kryo 280
Kernel Kryo

Frequency
4x 2.8 GHz (Cortex A75)
4x 1.7 GHz (Cortex A55)
4x 2.45 GHz (Cortex A73)
4x 1.9 GHz (Cortex A53)
2x 2.35 GHz Kryo
2x 1.6 GHz Kryo

Graphics
630 GPU Adreno
540 Adreno GPU
Adreno 530 GPU

DSP
Hexagon 685 with the HVX
Hexagon 682 with the HVX
Hexagon 680

Process technology
10-nm FinFET LPP
10-nm FinFET LPE
14-nm FinFET LLP

Speaking of graphics, there is a new subsystem video processing Adreno 630. The gain of the image enhancement of video graphics and reducing energy consumption compared to Adreno 540, was 30%. Qualcomm has improved support for augmented and virtual reality in Snapdragon 845. Graphics Adreno 630 supports screen resolutions up to 2K×2K and a speed of up to 120 Hz.

Snapdragon 845 is also the first mobile platform allowing 6-axis of motion (6DoF) in the scale of the room with simultaneous localization and mapping (SLAM), which may include functions such as detection of joints on walls (a feature useful for AR).

Artificial intelligence

This year, companies such as Apple and Huawei showed its processors with a built-in artificial intelligence. Not surprisingly, Qualcomm has also improved the AI in their novelty. From the point of view of performance, the Snapdragon 845 has a 3-fold increase in problems with AI, compared to 835. This is due to the combination of improvements to CPU and GPU. But Snapdragon 845 also includes a vector DSP third-generation HVX, called Hexagon 685, which is optimized for AI and image processing.

Qualcomm notes that this system is closely connected with built-in audio codec Qualcomm Aqstic WCD9341. This component enables monitoring at low power for detecting and processing key words. This technology will help virtual assistants to work even more efficiently.

Snapdragon 845 became more open to developers who can create applications with machine learning on a given platform. Snapdragon SDK Neural Processing Engine now supports TensorFlow Lite and Open Neural Network Exchange in addition to the original TensorFlow and Facebook Caffe/Caffe2. Snapdragon 845 also supports Google Android Nueral Networks API for use with Android 8.1.

Multimedia capabilities

As for the multimedia capabilities, the Spectra processor was designed from scratch. The new chip was called the 280 Spectra ISP. It offers a number of new features of the camera: slow motion in 720p, 480 fps, 60 fps camera resolution 16 MP. Appeared energy efficient multi-frame noise reduction, as well as Express stabilization software. 10-bit support HDR’s with the support of Rec. 2020 for 4K/Ultra HD. But on the other hand, displays smartphones do not support playback of this video.

To upload and share such videos, Qualcomm has improved the Wi-Fi modems and X20 LTE for speeds greater than Gigabit. Modem LTE X20 corresponds to the LTE standard 18 category for downloads up to 1.2 GB/s and 150 Mbit/s. It also support License Assisted Access (LAA) for unlicensed spectrum, 4×4 MIMO to 3 operators, Dual SIM c Dual VoLTE.

Snapdragon 845
Snapdragon 835
Snapdragon 821

Camera
One 32 MP / 16 MP dual
Hybrid AF, live HDR, multi-frame noise reduction
One 32 MP / 16 MP dual
Hybrid AF, HDR video
28 one MP / 14 MP dual
Hybrid AF, HDR video

Video recording
4K UHD @ 60fps
4K UHD @ 30fps
4K UHD @ 30fps

Video playback
4K UHD @ 60fps, 10-bit H. 264 (AVC) and H. 265 (HEVC)
4K UHD @ 60fps, 10-bit H. 264 (AVC) and H. 265 (HEVC)
4K UHD @ 60fps, 10-bit H. 264 (AVC) and H. 265 (HEVC)

Charging
Quick Charge 4+
(Support USB Type-C and USB Power Delivery)
Quick Charge 4.0
(Support USB Type-C and USB Power Delivery)
Quick Charge 3.0

Modem
x20 LTE
1200 Mbps
150Mbps
x16 LTE
1000 Mbps
150Mbps
x12 LTE
600 MB
150Mbps

As for Wi-Fi, then there is a wireless broadband Wi-Fi with 60 GHz 802.11 ad for more reliable mnogogrannogo coating speeds of up to 4.6 Gbit/s. There is also integrated Wi-Fi 802.11 ac with advanced features and up to 16 times faster connection setup simultaneous dual-band support. So uploading and downloading files should be no problem.

Security and other features

One of the main innovations of this processor was the availability of special isolated security subsystem called the Secure Processing Unit (SPU). This system will store all biometric data: fingerprint, face scanner, iris scanner. This system is based on design from Qualcomm.

The hardware can also store security keys users in applications used for encryption. This allows the system to remove any potential violations of software that can occur at the application level or even at the OS level. This system will store confidential data of financial payments, etc. In fact, the storage of personal biometric and financial data will be more safer if you are certainly not paranoid.

The CPU, of course received the support of fast charging. Now this is the Quick Charge 4+. The device while charging will heat up even less, but the velocity increased by another 15%. Pleased with hardware support for Bluetooth version 5.0 and codec support aptX and aptX HD Bluetooth wireless headphones.

Qualcomm claims that they have made a number of improvements in its equipment for Bluetooth 5.0. Therefore, there is support for ultra-low power consumption for wireless headphones and direct audio to multiple devices.

Release date Qualcomm Snapdragon 845

If you follow the innovations in the creation of processors from Qualcomm, most of the new features Snapdragon 845 already known to all. At the moment, the capacity increase of 20-30% is not particularly important. The most important is a variety of special features built into the chipset and its optimization for mobile devices.

If to speak about tendencies 2017 and 2018, Qualcomm has prepared well. Because the new chipset meets the requirements for additional processing and virtual reality for ultrafast data transfer speeds on 5G networks, and also for better multimedia capabilities and streaming.

In any smartphones will have Snapdragon 845

Qualcomm agrees with partners to supply a new chipset for their flagship devices. Deliveries will begin from the beginning of 2018. The first smartphones based on the Qualcomm Snapdragon processor 845 will Xiaomi Mi7, and Samsung Galaxy S9. And later, this trend will pick up and other manufacturers.

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