Qualcomm Snapdragon 821 vs Qualcomm Snapdragon 855

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Which processor is better? We compared Qualcomm Snapdragon 821 with Qualcomm Snapdragon 855. Compare, analyze the specifications. Find out their scores in popular benchmarks (AnTuTu 10, GeekBench 6 Single-Core, GeekBench 6 Multi-Core) and who is the winner?

CPU cores and architecture

Architecture	4x 2.4 GHz – Kryo 4x 1.6 GHz – Kryo	1x 2.84 GHz – Cortex-A76 (Kryo 485 Prime) 3x 2.4 GHz – Cortex-A76 (Kryo 485 Gold) 4x 1.8 GHz – Cortex-A55 (Kryo 485 Silver)
Number of cores	8	8
Instruction Set	ARMv8-A	ARMv8.2-A
Lithography	14 nm	7 nm
Number of transistors	2000 million
TDP	11 Watt	6 Watt
Neural Processing	Qualcomm Hexagon 680	Qualcomm Hexagon 690

Memory (RAM)

Max amount	up to 8 GB	up to 16 GB
Memory type	LPDDR4	LPDDR4X
Memory frequency	1866 MHz	2133 MHz
Memory-bus	2x16 bit	4x16 bit

Storage

Storage specification

UFS 2.0

Graphics

GPU name	Adreno 530	Adreno 640
GPU Architecture	Adreno 500	Adreno 600
GPU frequency	650 MHz	590 MHz
Execution units	2	4
Shaders	256	384
DirectX	11.2	12
OpenCL API	2.0	2.0
OpenGL API	ES 3.1	ES 3.2
Vulkan API	1.0	1.1

Camera, Video, Display

Max screen resolution	3840x2160	3840x2160
Max camera resolution	1x 28MP, 2x	1x 192MP, 2x 22MP
Max Video Capture	4K@30fps	4K
Video codec support	H.264 (AVC) H.265 (HEVC)	H.264 (AVC) H.265 (HEVC) VP8 VP9

Wireless

4G network	Yes	Yes
5G network	Yes	Yes
Peak Download Speed	0.6 Gbps	2 Gbps
Peak Upload Speed	0.15 Gbps	0.316 Gbps
Wi-Fi	5 (802.11ac)	6 (802.11ax)
Bluetooth	4.1	5.0
Satellite navigation	BeiDou GPS Galileo GLONASS	BeiDou GPS Galileo GLONASS QZSS SBAS