Qualcomm Snapdragon 821 vs Qualcomm Snapdragon 678
SOC Specs Compare
CPU
Architecture
2x 2.342 GHz – Kryo2x 1.6 GHz – Kryo
2x 2.2 GHz – Kryo 460 Gold (Cortex-A76)6x 1.7 GHz – Kryo 460 Silver (Cortex-A55)
Frequency
2342 MHz
2200 MHz
Cores
4
8
Instruction set
ARMv8-A
ARMv8-A
L1 cache
64 KB
16 KB
L2 cache
0
0
Process
14 nm
11 nm
Transistor count
2
-
TDP
11 W
6 W
Manufacturing
Samsung
Samsung
Graphics
GPU name
Adreno 530
Adreno 612
GPU frequency
653 MHz
845 MHz
Execution units
1
2
Shading units
256
96
Vulkan version
1.0
1.1
OpenCL version
2.0
2.0
DirectX version
11
12.1
Memory
Memory Type
LPDDR4
LPDDR4X
Memory frequency
1866 MHz
1866 MHz
Bus
4x 16 Bit
2x 16 Bit
Max bandwidth
29.8 Gbit/s
14.9 Gbit/s
Multimedia (ISP)
Neural processor (NPU)
Hexagon 680
Hexagon 685
Storage type
eMMC 5.1, UFS 2.0
eMMC 5.1, UFS 2.1
Max display resolution
3840 x 2160
2520 x 1080
Max camera resolution
1x 28MP, 2x 13MP
1x 192MP, 2x 25MP
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, VP9
Audio codecs
AIFF, CAF, MP3, MP4, WAV
AAC, AIFF, CAF, MP3, MP4, WAV
Connectivity
4G support
LTE Cat. 12
LTE Cat. 12
5G support
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
Info
📊 Benchmark
Geekbench 6
391
685
Geekbench 6
797
1,568
FP32 (float)
334
324
AnTuTu 10
-
340,607