Mobile processor comparison

MediaTek Dimensity 9400 vs MediaTek Dimensity 8400

Compare available catalogue specifications. The page highlights factual differences without declaring an overall winner.

Compared fields 37
Different values 25
Quick factual highlights
MediaTek Dimensity 9400
  • Higher maximum CPU clock
  • Smaller manufacturing process
  • Higher listed GPU clock
MediaTek Dimensity 8400 No safely comparable numerical advantage detected.
Side-by-side specifications

Detailed comparison

CPU

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
Architecture 1x 3.63 GHz - Cortex-X9253x 3.3 GHz - Cortex-X44x 2.4 GHz - Cortex-A720 1x 3.25 GHz - Cortex-A7253x 3 GHz - Cortex-A7254x 2.1 GHz - Cortex-A725
CPU cores 8 8
Clock speed 3630 MHz 3250 MHz
Instruction set ARMv9.2-A ARMv9-A
Process technology 3 nanometers 4 nanometers

Cache and memory

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
L2 cache 12 MB 1 MB
L3 cache Not available 6 MB
Memory type LPDDR5X LPDDR5X
Memory frequency 5333 MHz 4266 MHz
Memory bus 4x 16 Bit 4x 16 Bit
Maximum bandwidth 85.4 Gbit/s 68.2 Gbit/s
Maximum memory 24 GB 24 GB

Graphics and AI

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
GPU Mali-G925 Immortalis MP12 Mali-G720 MP7
GPU architecture Valhall 5th gen Valhall 5th gen
GPU clock 1612 MHz 1300 MHz
Shaders 128 896
FLOPS 4952.1 Gigaflops 2329.6 Gigaflops
Vulkan 1.3 1.3
OpenCL 3.0 3.2
DirectX 12.1 12
Neural processor / NPU MediaTek NPU 890 MediaTek NPU 880

Display and media

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
Maximum display resolution 3840 x 2160 Not available
Maximum camera resolution 1x 320MP 1x 320MP, 3x 32MP
Video capture 8K at 60FPS, 4K at 120FPS 4K at 60FPS
Video playback 8K at 60FPS, 4K at 120FPS 4K at 60FPS
Video codecs - H.264 - H.265 - AV1 - VP9 - H.264 - H.265 - AV1 - VP9
Audio codecs - AAC LC - FLAC - HE-AACv1 - HE-AACv2 - MP3 - AAC LC - FLAC - HE-AACv1 - HE-AACv2 - MP3

Connectivity

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
4G LTE Cat. 24 Not available
5G Yes Yes
Download speed Not available Up to 5170 Mbps
Wi-Fi 7 6
Bluetooth 6.0 6.0
Navigation GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC

General

SpecificationMediaTek Dimensity 9400MediaTek Dimensity 8400
Release October 2024 December 2024
Class Flagship Mid range
Model number MT6991 MT6899, MT6899Z
Storage support UFS 4.0 UFS 4.0
Real devices

Phones using these processors

Examples found in the existing device catalogue.

MediaTek Dimensity 9400

5G
Oppo Find X8s
Oppo

Oppo Find X8s

3.0
Smartphone
Display
LTPO AMOLED 1.07G colors, 120 Hz, 1216 × 2640…
RAM
12 GB, 16 GB
Storage
1000 GB, 256 GB, 512 GB
Battery
Li-Po 5700 mAh
5G
Oppo Find X8 Pro
Oppo

Oppo Find X8 Pro

3.0
Smartphone
Display
LTPO AMOLED 1.07G colors, 120 Hz, 1264 × 2780…
RAM
12 GB, 16 GB
Storage
1000 GB, 256 GB, 512 GB
Battery
Si-Car 5910 mAh
5G
Oppo Find X8
Oppo

Oppo Find X8

3.0
Smartphone
Display
LTPO AMOLED 1.07G colors, 120 Hz, 1256 × 2760…
RAM
12 GB, 16 GB
Storage
1000 GB, 256 GB, 512 GB
Battery
Li-Po 5630 mAh

MediaTek Dimensity 8400

5G
Realme GT 7T
Realme

Realme GT 7T

3.6
Smartphone
Display
AMOLED, 120 Hz, 1280 × 2800 pixels (6.80 inch…
RAM
12 GB, 8 GB
Storage
256 GB, 512 GB
Battery
Si-Car 7000 mAh
5G
Realme Neo7 SE
Realme

Realme Neo7 SE

3.6
Smartphone
Display
LTPO AMOLED 1.07G colors, 120 Hz (6.78 inches)
RAM
12 GB, 16 GB, 8 GB
Storage
256 GB, 512 GB
Battery
Li-Po 7000 mAh
5G
Redmi Turbo 4
Redmi

Redmi Turbo 4

3.6
Smartphone
Display
OLED 68.7G colors, 120 Hz, 1220 × 2712 pixels…
RAM
12 GB, 16 GB
Storage
256 GB, 512 GB
Battery
Li-Po 6550 mAh