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Qualcomm Snapdragon 821 VS Qualcomm Snapdragon 665 Comparison

Comparison of Qualcomm Snapdragon 665 and Qualcomm Snapdragon 665. See Qualcomm Snapdragon 821 VS Qualcomm Snapdragon 665 Compare Processor specs, benchmark scores, and performance. See what mobile processor is better.

This page tells you key differences in specs of Qualcomm Snapdragon 821 and Qualcomm Snapdragon 665. 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 821 and Qualcomm Snapdragon 665.

This page was last updated on 10, June 2026

CPU Performance
Snapdragon 821
80% Complete (danger)
26
Snapdragon 665
80% Complete (danger)
26
Gaming Performance
Snapdragon 821
80% Complete (danger)
21
Snapdragon 665
80% Complete (danger)
14
Battery Performance
Snapdragon 821
80% Complete (danger)
26
Snapdragon 665
80% Complete (danger)
26
Product Name Snapdragon 821 Snapdragon 665
Released On August 2016 April 2019
Brand Qualcomm Qualcomm
Model Number MSM8996 Pro SM6125
snapdragon snapdragon
Benchmarks
Antutu
CPU 67962
GPU 61224
Memory 43896
UX 59644
Total score 231620
CPU 65976
GPU 33635
Memory 44631
UX 53256
Total score 197206
Geekbench
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
Single-Core Score 314
Multi-Core Score 1351
Image compression 87.65 Mpixels/s
Face detection 12.2 images/s
Speech recognition 21.45 words/s
Machine learning 16.65 images/s
Camera shooting 10.9 images/s
HTML 5 1.8 Mnodes/s
SQLite 468 Krows/s
3D Mark
Graphics test 5 FPS
Score 886
Stability 98%
Graphics test 1 FPS
Score 219
Processor
Architecture 2x 2.342 GHz - Kryo, 2x 1.6 GHz - Kryo 4x 2 GHz - Kryo 260 Gold (Cortex-A73), 4x 1.8 GHz - Kryo 260 Silver (Cortex-A53)
Cores 4 8
Frequency 2342 MHz 2000 MHz
Instruction Set ARMv8-A ARMv8-A
Transistor Count 2 billion 1.75 billion
L1 Cache 64 KB
L2 Cache 3 MB 1 MB
L3 Cache
Manufacturing Process 14 nanometers 11 nanometers
TDP 11 W 5 W
Graphics
GPU Name Adreno 530 Adreno 610
Graphis Architecture Adreno 500 Adreno 600
GPU Frequency 653 MHz 600 MHz
Execution Units 2 2
Shading Units 256 96
Shading Units 256 96
FLOPS 519 Gigaflops 273 Gigaflops
Vulkan Version 1.0 1.1
Opencl Version 2.0 2.0
DirectX Version 11.2 12
Memory
Memory Type LPDDR4 LPDDR4X
Memory Bus 4x 16 Bit 2x 16 Bit
Memory Frequency 1866 MHz 1866 MHz
Max bandwidth 29.8 Gbit/s 14.9 Gbit/s
Max Size 6 GB 8 GB
Storage Type eMMC 5.1, UFS 2.0 eMMC 5.1, UFS 2.1
Multimedia
Neural Processor Hexagon 680 Hexagon 686
Max Display Resolution 3840 x 2160 2520 x 1080
Max Camera Resolution 1x 28MP, 2x 13MP 1x 48MP, 2x 16MP
Video Capture 4K at 30FPS 4K at 30FPS
Video Playback 4K at 30FPS 4K at 30FPS
Video Codecs H.264, H.265, VP8, VP9 H.264, H.265, VP8, VP9
Audio Codecs AIFF, CAF, MP3, MP4, WAV AIFF, CAF, MP3, MP4, WAV
Connectivity
Modem X12 X12
4G LTE Cat. 12 LTE Cat. 12
5G No No
Download Speed Up to 600 Mbps Up to 600 Mbps
Upload Speed Up to 150 Mbps Up to 150 Mbps
Wi-Fi 5 5
Bluetooth 4.1 5.0
Navigation GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo, QZSS, SBAS

Qualcomm Snapdragon 821 VS Qualcomm Snapdragon 665 Comparison

You can see the comparison of both mobile platforms Qualcomm Snapdragon 821 and Qualcomm Snapdragon 665 side by side. Now you are free to judge and decide what mobile platform is better and offers better performance.

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