MediaTek Dimensity 9400 vs MediaTek Helio X20
We compared two versions of phone SoCs: 8 cores 3630MHz MediaTek Dimensity 9400 vs. 10 cores 2100MHz MediaTek Helio X20 . You will find out which processor performs better in benchmark tests, key specifications, power consumption, and more.
Main Differences
MediaTek Dimensity 9400 Advantages
Better graphics card performance FLOPS (4.9521 TFLOPS vs 0.0998 TFLOPS )
Larger memory bandwidth (85.3GB/s vs 12.8GB/s)
Higher Frequency (3630MHz vs 2100MHz)
More modern manufacturing process (3nm vs 20nm)
Released 9 years and 5 months late
MediaTek Helio X20 Advantages
Lower TDP (5W vs 15W)
Score
Benchmark
FP32 (float)
MediaTek Dimensity 9400
+4902%
4952
MediaTek Helio X20
99
CPU
1x 3.63 GHz – Cortex-X925
3x 3.3 GHz – Cortex-X4
4x 2.4 GHz – Cortex-A720
3x 3.3 GHz – Cortex-X4
4x 2.4 GHz – Cortex-A720
Architecture
2x 2.1 GHz – Cortex-A72
4x 1.85 GHz – Cortex-A53
4x 1.4 GHz – Cortex-A53
4x 1.85 GHz – Cortex-A53
4x 1.4 GHz – Cortex-A53
3630 MHz
Frequency
2100 MHz
8
Cores
10
ARMv9.2-A
Instruction set
ARMv8-A
3.5 MB
L2 cache
-
12 MB
L3 cache
-
3 nm
Process
20 nm
-
Transistor count
3
15 W
TDP
5 W
TSMC
Manufacturing
TSMC
Graphics
Mali-G925 Immortalis MP12
GPU name
Mali-T880 MP4
1612 MHz
GPU frequency
780 MHz
-
Execution units
4
128
Shading units
16
24
Max size
4
4.9521 TFLOPS
FLOPS
0.0998 TFLOPS
1.3
Vulkan version
1.0
3.0
OpenCL version
1.2
12.1
DirectX version
11.2
Memory
LPDDR5X
Memory type
LPDDR3
5333 MHz
Memory frequency
933 MHz
4x 16 Bit
Bus
2x 16 Bit
85.3 Gbit/s
Max bandwidth
12.8 Gbit/s
AI
MediaTek NPU 890
NPU
-
Multimedia (ISP)
Yes
Neural processor (NPU)
No
UFS 4.0
Storage type
eMMC 5.1
3840 x 2160
Max display resolution
2560 x 1600
1x 320MP
Max camera resolution
1x 25MP
8K at 60FPS, 4K at 120FPS
Video capture
4K at 30FPS
8K at 60FPS, 4K at 120FPS
Video playback
4K at 30FPS
- H.264
- H.265
- AV1
- VP9
- H.265
- AV1
- VP9
Video codecs
H.264, H.265, VP9
- AAC LC
- FLAC
- HE-AACv1
- HE-AACv2
- MP3
- FLAC
- HE-AACv1
- HE-AACv2
- MP3
Audio codecs
AIFF, CAF, MP3, MP4, WAV
Connectivity
LTE Cat. 24
4G support
LTE Cat. 6
Yes
5G support
No
-
Download speed
Up to 300 Mbps
-
Upload speed
Up to 50 Mbps
7
Wi-Fi
5
6.0
Bluetooth
4.1
GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
Navigation
GPS, GLONASS, Beidou, Galileo
Info
Oct 2024
Announced
May 2015
Flagship
Class
Mid range
MT6991
Model number
MT6797
