Qualcomm Snapdragon 821 vs MediaTek Dimensity 9400
SOC · Specs Compare
CPU
Architecture
2x 2.342 GHz – Kryo2x 1.6 GHz – Kryo
1x 3.63 GHz – Cortex-X9253x 3.3 GHz – Cortex-X44x 2.4 GHz – Cortex-A720
Frequency
2342 MHz
3630 MHz
Cores
4
8
Instruction set
ARMv8-A
ARMv9.2-A
L1 cache
64 KB
—
L2 cache
0
3.5 MB
Process
14 nm
3 nm
Transistor count
2
—
TDP
11 W
15 W
Manufacturing
Samsung
TSMC
L3 cache
—
12 MB
Graphics
GPU name
Adreno 530
Mali-G925 Immortalis MP12
GPU frequency
653 MHz
1612 MHz
Execution units
1
—
Shading units
256
128
Vulkan version
1.0
1.3
OpenCL version
2.0
3.0
DirectX version
11
12.1
Memory
Memory Type
LPDDR4
LPDDR5X
Memory frequency
1866 MHz
5333 MHz
Bus
4x 16 Bit
4x 16 Bit
Max bandwidth
29.8 Gbit/s
85.3 Gbit/s
Multimedia (ISP)
Neural processor (NPU)
Hexagon 680
Yes
Storage type
eMMC 5.1, UFS 2.0
UFS 4.0
Max display resolution
3840 x 2160
3840 x 2160
Max camera resolution
1x 28MP, 2x 13MP
1x 320MP
Video capture
4K at 30FPS
8K at 60FPS, 4K at 120FPS
Video playback
4K at 30FPS
8K at 60FPS, 4K at 120FPS
Video codecs
H.264, H.265, VP8, VP9
- H.264- H.265- AV1- VP9
Audio codecs
AIFF, CAF, MP3, MP4, WAV
- AAC LC- FLAC- HE-AACv1- HE-AACv2- MP3
Connectivity
4G support
LTE Cat. 12
LTE Cat. 24
5G support
No
Yes
Download speed
Up to 600 Mbps
—
Upload speed
Up to 150 Mbps
—
Wi-Fi
5
7
Bluetooth
4.1
6.0
Navigation
GPS, GLONASS, Beidou, Galileo
GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
Info
Announced
Aug 2016
Oct 2024
Class
Flagship
Flagship
Model number
MSM8996 Pro-AC
MT6991
AI
NPU
—
MediaTek NPU 890
Benchmark
Geekbench 6
391
2,874
Geekbench 6
797
8,969
FP32 (float)
334
—
AnTuTu 10
—
2,647,012
▲ Specs Compare
Data sourced from official specifications and benchmark tests.