The Snapdragon 855 was announced on December 5, 2018.The Snapdragon 855 is Qualcomm's first 7 nm FinFET chipset.
Notable features over its predecessor (845):
- 7 nm (N7 TSMC) process
- Die size: 73 mm²
- Support up to 16 GB LPDDR4X 2133 MHz support
- 4x 16-bit memory bus, (34.13 GB/s)
- NVM Express 2x 3.0 (1x for external 5G modem)
- CPU features[155]
- 1 Kryo 485 Prime (Cortex-A76-based), up to 2.84 GHz. Prime core with 512 KB pL2
- 3 Kryo 485 Gold (Cortex-A76-based), up 2.42 GHz. Performance cores with 256 KB pL2 each
- 4 Kryo 485 Silver (Cortex-A55-based), up 1.8 GHz. Efficiency cores with 128 KB pL2 each
- DynamIQ with 2 MB sL3 cache
- 3 MB system-level cache
- GPU features
- Adreno 640 GPU with support for Vulkan 1.1
- Tri-core GPU @ 585 MHz with 768 ALUs, 36 TMUs and 28 ROPs (up from 512 ALUs, 24 TMUs and 16 ROPs)
- 954.7 FP32 GFLOPs, 1853.3 FP16 GFLOPs, 28.1 bilinear GTexels/s, 9.4 GPixels/s and 300 GB/s effective memory bandwidth
- HDR gaming (10-bit color depth, Rec. 2020)
- 120 fps gaming
- Improvement on hardware-accelerated H.265 and VP9 decoder
- HDR playback codec support for HDR10+, HDR10, HLG and Dolby Vision
- Volumetric VR video playback
- 8K 360 VR video playback
- Quarterly GPU driver updates via Google Play Store
- Android GPU Inspector Tool
- DSP features
- Hexagon 690 4th generation "AI engine" with greater than 7 trillion operations per second (TOPS)
- Qualcomm Hexagon Vector Accelerator with Hexagon Vector eXtensions
- Qualcomm Hexagon Tensor Accelerator (HTA)
- Qualcomm Hexagon Voice Assistant
- All-Ways Aware™ Hub
- Caffe, Caffe2, Halide and TensorFlow support
- Vector/Scalar performance compared with Hexagon 680: doubled the HVX vector units and 20% increase in scalar performance
- ISP features:
- Qualcomm Spectra 380 with dual 14-bit CV-ISPs and hardware accelerator for computer vision
- 192 MP single camera; 48 MP at 30 fps single camera with MFNR/ZSL; 22 MP at 30 fps dual camera with MFNR/ZSL
- HEIF photo capture support
- Tri-core hardware CV functions including object detection & tracking, and stereo depth processing
- Advanced HDR solution including improved zzHDR and 3-exposure Quad Color Filter Array (QCFA) HDR
- 4K 60 FPS HDR video with real-time object segmentation (portrait mode, background swap) features HDR10, HDR10+ and HLG with Portrait Mode (bokeh), 10-bit color depth and Rec. 2020 color gamut
- Up to 1.32 Gpixel/s
- Video Capture Formats: HDR10, HLG
- Video Codec Support: H.265 (HEVC), H.264 (AVC), HLG, HDR10, HDR10+, VP8, VP9
- Modem and Wireless features:
- Internal X24 LTE Modem
- Download: 2000 Mbit/s DL (Cat. 20), 7x20 MHz CA, 256-QAM, 4x4 MIMO
- Upload: 316 Mbit/s UL (Cat 20), 3x20 MHz CA, 256-QAM
- External Snapdragon X50 (5G Modem): 5000 Mbit/s DL
- Qualcomm Wi-Fi 6-ready mobile platform:
- Wi-Fi Standards: 802.11ax-ready, 802.11ac Wave 2, 802.11a/b/g, 802.11n
- Wi-Fi Spectral Bands: 2.4 GHz, 5 GHz• Channel Utilization: 20/40/80 MHz
- MIMO Configuration: 2x2 (2-stream) • MU-MIMO• Dual-band simultaneous (DBS)
- Key Features: 8x8 sounding (up to 2x improvement over 4x4 sounding devices), Target Wakeup Time for up to 67% better power efficiency, latest security with WPA3
- Qualcomm 60 GHz Wi-Fi mobile platform
- Wi-Fi Standards: 802.11ad, 802.11ay
- Wi-Fi Spectral Band: 60 GHz
- Peak speed: 10 Gbit/s
