Home Mobile and Tablet SoC Comparison Qualcomm Snapdragon 821 vs Qualcomm Snapdragon 665

Qualcomm Snapdragon 821 vs Qualcomm Snapdragon 665

Qualcomm Snapdragon 821
VS
Qualcomm Snapdragon 665
Qualcomm Snapdragon 821
Qualcomm Snapdragon 665
We compared two versions of phone SoCs: 4 cores 2342MHz Qualcomm Snapdragon 821 vs. 8 cores 2000MHz Qualcomm Snapdragon 665 . You will find out which processor performs better in benchmark tests, key specifications, power consumption, and more.

Main Differences

Qualcomm Snapdragon 821 Advantages
Better graphics card performance FLOPS (0.3343 TFLOPS vs 0.2432 TFLOPS )
Larger memory bandwidth (29.8GB/s vs 14.9GB/s)
Higher Frequency (2342MHz vs 2000MHz)
Qualcomm Snapdragon 665 Advantages
More modern manufacturing process (11nm vs 14nm)
Lower TDP (5W vs 11W)
Released 2 years and 8 months late

Score

Benchmark

AnTuTu 10
Qualcomm Snapdragon 821
233076
Qualcomm Snapdragon 665 +1%
235607
Geekbench 6 Single Core
Qualcomm Snapdragon 821 +16%
391
Qualcomm Snapdragon 665
337
Geekbench 6 Multi Core
Qualcomm Snapdragon 821
797
Qualcomm Snapdragon 665 +46%
1167
FP32 (float)
Qualcomm Snapdragon 821 +37%
334
Qualcomm Snapdragon 665
243
Qualcomm Snapdragon 821
VS
Qualcomm Snapdragon 665

CPU

2x 2.342 GHz – Kryo
2x 1.6 GHz – Kryo
Architecture
4x 2 GHz – Kryo 260 Gold (Cortex-A73)
4x 1.8 GHz – Kryo 260 Silver (Cortex-A53)
2342 MHz
Frequency
2000 MHz
4
Cores
8
ARMv8-A
Instruction set
ARMv8-A
1 MB
L2 cache
1 MB
14 nm
Process
11 nm
2
Transistor count
1.75
11 W
TDP
5 W
Samsung
Manufacturing
Samsung

Graphics

Adreno 530
GPU name
Adreno 610
653 MHz
GPU frequency
950 MHz
1
Execution units
1
256
Shading units
128
8
Max size
8
0.3343 TFLOPS
FLOPS
0.2432 TFLOPS
1.0
Vulkan version
1.1
2.0
OpenCL version
2.0
11
DirectX version
12.1

Memory

LPDDR4
Memory type
LPDDR4X
1866 MHz
Memory frequency
1866 MHz
4x 16 Bit
Bus
2x 16 Bit
29.8 Gbit/s
Max bandwidth
14.9 Gbit/s

Multimedia (ISP)

Hexagon 680
Neural processor (NPU)
Hexagon 686
eMMC 5.1, UFS 2.0
Storage type
eMMC 5.1, UFS 2.1
3840 x 2160
Max display resolution
2520 x 1080
1x 28MP, 2x 13MP
Max camera resolution
1x 48MP, 2x 16MP
4K at 30FPS
Video capture
4K at 30FPS
4K at 30FPS
Video playback
4K at 30FPS
H.264, H.265, VP8, VP9
Video codecs
H.264, H.265, VP8, VP9
AIFF, CAF, MP3, MP4, WAV
Audio codecs
AIFF, CAF, MP3, MP4, WAV
X12
Modem
X12

Connectivity

LTE Cat. 12
4G support
LTE Cat. 13
No
5G support
No
Up to 600 Mbps
Download speed
Up to 600 Mbps
Up to 150 Mbps
Upload speed
Up to 150 Mbps
5
Wi-Fi
5
4.1
Bluetooth
5.0
GPS, GLONASS, Beidou, Galileo
Navigation
GPS, GLONASS, Beidou, Galileo, QZSS, SBAS

Info

Aug 2016
Announced
Apr 2019
Flagship
Class
Mid range
MSM8996 Pro-AC
Model number
SM6125
Qualcomm Snapdragon 821
Official page
Qualcomm Snapdragon 665

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