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Snapdragon 855
General Info
Designer	Qualcomm, ARM Holdings
Manufacturer	TSMC
Model Number	SDM855
Market	Mobile
Introduction	December 4, 2018 (announced) Q1, 2019 (launched)
General Specs
Family	Snapdragon 800
Series	800
Microarchitecture
ISA	ARMv8 (ARM)
Microarchitecture	Cortex-A76, Cortex-A55
Core Name	Kryo 485 Gold, Kryo 485 Silver
Process	7 nm
Technology	CMOS
Word Size	64 bit
Cores	8
Threads	8
Max Memory	16 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Packaging
Succession
Snapdragon 845

Block Diagram

Snapdragon 855 is a high-performance 64-bit ARM LTE system on a chip designed by Qualcomm and introduced in late 2018. Fabricated on TSMC's 7nm process, the 855 features four Kryo 485 Silver high-efficiency cores operating at 1.8 GHz along with three high-performance Kryo 485 Gold operating at 2.42 GHz and another higher-performance Kryo 485 Gold core operating at 2.84 GHz. The Snapdragon 855 integrates the Adreno 640 GPU operation at ? MHz and features an X24 LTE modem supporting Cat 20 uplink and Cat 20 downlink. This chip supports up to 16 GiB of quad-channel LPDDR4X-4266 memory.

The Snapdragon 855 can be paired with Qualcomm's X50 5G modem (an external chip) and an RF front-end interface chip (RFFE) to bring 5G NR, sub-6 GHz and mmWave, support.

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type LPDDR4X-4266 Supports ECC No Max Mem 16 GiB Frequency 2133 MHz Controllers 1 Channels 8 Width 16 bit Max Bandwidth 31.79 GiB/s 32,552.96 MiB/s 34.134 GB/s 34,134.253 MB/s 0.031 TiB/s 0.0341 TB/s Bandwidth Single 7.95 GiB/s Double 15.89 GiB/s Quad 31.79 GiB/s

DSP

This chip features Qualcomm's Hexagon 685 DSP.

Graphics

[Edit/Modify IGP Info]

	Integrated Graphics Information
	GPU Adreno 640 GPU Designer Qualcomm Max Displays 2 Frequency 250 MHz 0.25 GHz 250,000 KHz Burst Frequency 585 MHz 0.585 GHz 585,000 KHz Standards DirectX 12 OpenCL 2.0 OpenGL ES 3.2 Vulkan 1.1

• Codec: H.265 (HEVC), H.264 (AVC), HDR10, HDR10+, HLG, VP8, VP9
• HDR Playback Codec support for HDR10+, HDR10, HLG and Dolby Vision
• Volumetric VR video playback
• 8K 360 VR video playback

Camera

• ISP
  • Qualcomm Spectra 380 image signal processor
    • Dual 14-bit CV-ISPs
    • Hardware accelerator for computer vision (CV-ISP)
  • Up to 20 MP dual camera
  • Up to 32 MP single camera

• Photo Capture: HEIF photo capture
• Video Capture:
  • Rec. 2020 color gamut video capture
  • Up to 10-bit color depth video capture
  • Slow motion video capture up to 720p at 480fps,HEVC Video Capture

Connectivity

• X24 LTE modem
  • LTE Category 20
  • Downlink:
    • 2 Gbps peak
    • 7x20 MHz carrier aggregation
    • Up to 256-QAM
    • Up to 4x4 MIMO on five carriers
    • Full-Dimension MIMO (FD-MIMO)
    • Maximum 20 spatial streams
  • Uplink:
    • 316 Mbps peak
    • 3x20 MHz carrier aggregation
    • Up to 2x 106Mbps LTE streams
    • Up to 256-QAM
    • Uplink data compression
• LTE FDD, LTE TDD including CBRS support, LAA, LTE Broadcast, WCDMA (DB-DC-HSDPA, DC-HSUPA), TD-SCDMA, CDMA 1x, EV-DO, GSM/EDGE

• WiFi
  • Standards: 802.11ax, 802.11ac Wave 2, 802.11a/b/g, 802.11n
  • Spectral Bands: 2.4 GHz, 5 GHz, 6 GHz

• Bluetooth
  • Bluetooth 5.0
  • 2 Mbps

Location

• Systems: GPS, GLONASS, Beidou, Galileo, QZSS, SBAS, Dual frequency GNSS

Documents

• Product Brief
• Entertainment Deep Dive Presentation
• Deep Dive Presentation