MediaTek Dimensity 6400 vs MediaTek Helio G99
SOC · Specs Compare
CPU
Architecture
2x 2.5 GHz – Cortex-A766x 2 GHz – Cortex-A55
2x 2.2 GHz – Cortex-A766x 2 GHz – Cortex-A55
Frequency
2500 MHz
2200 MHz
Cores
8
8
Instruction set
ARMv8.2-A
ARMv8.2-A
L1 cache
512 KB
—
L2 cache
1 MB
—
L3 cache
2 MB
—
Process
6 nm
6 nm
Manufacturing
TSMC
TSMC
TDP
—
5 W
Graphics
GPU name
Mali-G57 MP2
Mali-G57 MP2
Shading units
64
64
Vulkan version
1.3
1.3
OpenCL version
2.0
2.0
DirectX version
12
12
GPU frequency
—
1100 MHz
Execution units
—
2
Memory
Memory Type
LPDDR4X
LPDDR4X
Memory frequency
2133 MHz
2133 MHz
Bus
2x 16 Bit
2x 16 Bit
Max bandwidth
17.07 Gbit/s
17.1 Gbit/s
AI
NPU
Yes
—
Multimedia (ISP)
Storage type
UFS 2.2
UFS 2.2
Max display resolution
2520 x 1080
2520 x 1080
Max camera resolution
1x 108MP, 2x 16MP
1x 108MP, 2x 16MP
Video capture
2K at 30FPS
2K at 30FPS
Video playback
2K at 30FPS
2K at 30FPS
Video codecs
- H.264- H.265- VP9
H.264, H.265, VP9
Audio codecs
- AAC LC- FLAC- HE-AACv1- HE-AACv2- MP3
AAC, AIFF, CAF, MP3, MP4, WAV
Neural processor (NPU)
—
Yes
Connectivity
5G support
Yes
No
Download speed
Up to 3300 Mbps
Up to 650 Mbps
Wi-Fi
5
5
Bluetooth
5.4
5.2
Navigation
GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
4G support
—
LTE Cat. 13
Upload speed
—
Up to 150 Mbps
Info
Announced
Feb 2025
May 2022
Class
Mid range
Mid range
Model number
—
MT6789
Benchmark
AnTuTu 10
446,033
415,167
Geekbench 6
—
733
Geekbench 6
—
1,994
FP32 (float)
—
281
▲ Specs Compare
Data sourced from official specifications and benchmark tests.