MediaTek Helio G91 vs MediaTek Dimensity 8400
SOC · Specs Compare
CPU
Architecture
2x 2 GHz – Cortex-A756x 1.8 GHz – Cortex-A55
1x 3.25 GHz – Cortex-A7253x 3 GHz – Cortex-A7254x 2.1 GHz – Cortex-A725
Frequency
2000 MHz
3250 MHz
Cores
8
8
Instruction set
ARMv8.2-A
ARMv9-A
Process
12 nm
4 nm
Manufacturing
TSMC
TSMC
L2 cache
—
1 MB
L3 cache
—
6 MB
Graphics
GPU name
Mali-G52 MP2
Mali-G720 MP7
GPU frequency
1000 MHz
1300 MHz
Execution units
2
6
Shading units
24
128
Vulkan version
1.3
1.3
OpenCL version
2.0
3.2
DirectX version
—
12
Memory
Memory Type
LPDDR4X
LPDDR5X
Memory frequency
1800 MHz
4266 MHz
Bus
2x 16 Bit
4x 16 Bit
Max bandwidth
13.41 Gbit/s
68.2 Gbit/s
AI
NPU
MediaTek APU
MediaTek NPU 880
Multimedia (ISP)
Storage type
eMMC 5.1
UFS 4.0
Max display resolution
2520 x 1080
2960 x 1440
Max camera resolution
1x 108MP, 2x 16MP
1x 320MP, 3x 32MP
Video capture
2K at 30FPS
4K at 60FPS
Video playback
2K at 30FPS
4K at 60FPS
Video codecs
H.264, H.265, VP9
- H.264- H.265- AV1- VP9
Audio codecs
AIFF, CAF, MP3, MP4, WAV
- AAC LC- FLAC- HE-AACv1- HE-AACv2- MP3
Neural processor (NPU)
—
MediaTek NPU 880
Connectivity
4G support
LTE Cat. 7
—
5G support
No
Yes
Download speed
Up to 300 Mbps
Up to 5170 Mbps
Upload speed
Up to 100 Mbps
Up to 4200 Mbps
Wi-Fi
5
6
Bluetooth
5.4
6.0
Navigation
GPS, GLONASS, Beidou, Galileo
GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
Info
Announced
Jun 2024
Dec 2024
Class
Low end
Mid range
Model number
—
MT6899, MT6899Z
Benchmark
AnTuTu 10
271,623
1,623,874
FP32 (float)
96
—
Geekbench 6
—
1,571
Geekbench 6
—
6,033
▲ Specs Compare
Data sourced from official specifications and benchmark tests.