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Qualcomm Snapdragon 855 VS Qualcomm Snapdragon 821 Comparison

Comparison of Qualcomm Snapdragon 821 and Qualcomm Snapdragon 821. See Qualcomm Snapdragon 855 VS Qualcomm Snapdragon 821 Compare Processor specs, benchmark scores, and performance. See what mobile processor is better.

This page tells you key differences in specs of Qualcomm Snapdragon 855 and Qualcomm Snapdragon 821. If you care for performance, you can check this comparison. We have also compared the benchmark scores to tell you performance differences in Qualcomm Snapdragon 855 and Qualcomm Snapdragon 821.

This page was last updated on 10, June 2026

CPU Performance
Snapdragon 855
80% Complete (danger)
60
Snapdragon 821
80% Complete (danger)
26
Gaming Performance
Snapdragon 855
80% Complete (danger)
57
Snapdragon 821
80% Complete (danger)
21
Battery Performance
Snapdragon 855
80% Complete (danger)
60
Snapdragon 821
80% Complete (danger)
26
Product Name Snapdragon 855 Snapdragon 821
Released On December 2018 August 2016
Brand Qualcomm Qualcomm
Model Number SM8150 MSM8996 Pro
Qualcomm Snapdragon 855 snapdragon
Benchmarks
Antutu
CPU 140558
GPU 183147
Memory 87772
UX 105950
Total score 512646
CPU 67962
GPU 61224
Memory 43896
UX 59644
Total score 231620
Geekbench
Single-Core Score 740
Multi-Core Score 2602
Image compression 143.55 Mpixels/s
Face detection 23.7 images/s
Speech recognition 44.8 words/s
Machine learning 45.65 images/s
Camera shooting 24.2 images/s
HTML 5 2.93 Mnodes/s
SQLite 783.05 Krows/s
Single-Core Score 337
Multi-Core Score 747
Image compression 51.2 Mpixels/s
Face detection 7.96 images/s
Speech recognition 15.4 words/s
Machine learning 14 images/s
Camera shooting 10.7 images/s
HTML 5 0.71 Mnodes/s
SQLite 239.7 Krows/s
3D Mark
Stability 96%
Graphics test 16 FPS
Score 2749
Graphics test 5 FPS
Score 886
Processor
Architecture 1x 2.84 GHz - Cortex-A76 (Kryo 485 Gold), 3x 2.42 GHz - Cortex-A76 (Kryo 485 Gold), 4x 1.8 GHz - Cortex-A55 (Kryo 485 Silver) 2x 2.342 GHz - Kryo, 2x 1.6 GHz - Kryo
Cores 8 4
Frequency 2840 MHz 2342 MHz
Instruction Set ARMv8.1-A ARMv8-A
Transistor Count 6.7 billion 2 billion
L1 Cache 384 KB 64 KB
L2 Cache 768 KB 3 MB
L3 Cache 2 MB
Manufacturing Process 7 nanometers 14 nanometers
TDP 10 W 11 W
Graphics
GPU Name Adreno 640 Adreno 530
Graphis Architecture Adreno 600 Adreno 500
GPU Frequency 585 MHz 653 MHz
Execution Units 2 2
Shading Units 384 256
Shading Units 384 256
FLOPS 899 Gigaflops 519 Gigaflops
Vulkan Version 1.1 1.0
Opencl Version 2.0 2.0
DirectX Version 12 11.2
Memory
Memory Type LPDDR4X LPDDR4
Memory Bus 4x 16 Bit 4x 16 Bit
Memory Frequency 2133 MHz 1866 MHz
Max bandwidth 34.1 Gbit/s 29.8 Gbit/s
Max Size 16 GB 6 GB
Storage Type UFS 3.0 eMMC 5.1, UFS 2.0
Multimedia
Neural Processor Hexagon 690 Hexagon 680
Max Display Resolution 3840 x 2160 3840 x 2160
Max Camera Resolution 1x 192MP, 2x 22MP 1x 28MP, 2x 13MP
Video Capture 4K at 120FPS 4K at 30FPS
Video Playback 8K at 30FPS, 4K at 120FPS 4K at 30FPS
Video Codecs H.264, H.265, VP8, VP9 H.264, H.265, VP8, VP9
Audio Codecs AAC, AIFF, CAF, MP3, MP4, WAV AIFF, CAF, MP3, MP4, WAV
Connectivity
Modem X24 LTE, X50 5G X12
4G LTE Cat. 20 LTE Cat. 12
5G Yes No
Download Speed Up to 2000 Mbps Up to 600 Mbps
Upload Speed Up to 316 Mbps Up to 150 Mbps
Wi-Fi 6 5
Bluetooth 5.0 4.1
Navigation GPS, GLONASS, Beidou, Galileo, QZSS, SBAS GPS, GLONASS, Beidou, Galileo

Qualcomm Snapdragon 855 VS Qualcomm Snapdragon 821 Comparison

You can see the comparison of both mobile platforms Qualcomm Snapdragon 855 and Qualcomm Snapdragon 821 side by side. Now you are free to judge and decide what mobile platform is better and offers better performance.

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