MediaTek Helio G91 vs MediaTek Dimensity 8400

Compared 2 processors: MediaTek Helio G91, vs MediaTek Dimensity 8400. Below are specs, tests, pros and cons for each device

Review

Key Specs MediaTek Helio G91 and MediaTek Dimensity 8400
Processor Performance
Single-Core Benchmark Score
Gaming Performance
Graphics and OpenCL/Vulkan tests
Energy Efficiency
Chip Power Efficiency
NanoReview Score
Overall score by NanoReview

Tests & specs

Specs & test comparison

Benchmarks

CPU performance comparison across tasks
AnTuTu 10
AnTuTu 10
MediaTek Helio G91
276628
MediaTek Dimensity 8400
1633597
CPU88936350248
GPU37692607362
Memory68557363103
UX81443312884
NanoReview Score2766281633597
GeekBench v6
Geekbench 6 (Single-Core)
MediaTek Helio G91
429
MediaTek Dimensity 8400
1571
Geekbench 6 (Multi-Core)
MediaTek Helio G91
1389
MediaTek Dimensity 8400
6033
File Compressionn/a262.5 MB/s
HTML5 Browsern/a190.4 pages/s
PDF Renderingn/a213.4 MP/sec
Background Blurn/a20.7 frames/s
Photo Processingn/a53.3 frames/s
Image Detectionn/a113.5 frames/s
HDRn/a168.7 MP/sec
Ray Tracingn/a6.99 MP/sec

Processor

Architecture - 2x 2 GHz – Cortex-A75
- 6x 1.8 GHz – Cortex-A55
- 1x 3.25 GHz – Cortex-A725
- 3x 3 GHz – Cortex-A725
- 4x 2.1 GHz – Cortex-A725
Process TSMC TSMC
Cores count 8 8
Frequency 2000 3250
Instruction set ARMv8.2-A ARMv9.2-A
L2 cache n/a 1 MB
L3 Cache n/a 6 MB
Process tech. 12 nm 4 nm
Power (TDP) 5 W 7 W

Graphics

GPU specifications including architecture, frequency, compute units, and support for graphics APIs (Vulkan, OpenCL, DirectX).
GPU Model Mali-G52 MP2 Mali-G720 MP7
Architecture Bifrost 2nd gen Valhall 5th gen
GPU Frequency 1000 MHz 1300 MHz
Execution Units 2 7
Shader Units 24 128
Total shader 48 896
FLOPS 96 GFLOPS 2329.6 GFLOPS
Vulkan 1.3 1.3
OpenCL 2.0 3.2
DirectX n/a 12

AI Acceleration

Specifications of the neural processor (NPU / DSP) responsible for machine learning and AI acceleration tasks.
Artificial Intelligence MediaTek APU MediaTek NPU 880

Memory

RAM
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1800 MHz 4266 MHz
Bus 2x16 bit 4x16 bit
Bandwidth 13.41 Gbit/s 68.2 Gbit/s
Max RAM 8 GB 24 GB

Multimedia

GPU, ISP capabilities, display and camera support, as well as audio and video codec compatibility.
Memory Type - eMMC 5.1
- UFS 2.1
UFS 4.0
Max. resolution 2520x1080 pixels 2960x1440 pixels
Camera 1x108 pixels 1x320 pixels
Video recording 2K at 30FPS 4K at 60FPS
Video quality 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

Connectivity

4G Support LTE Cat. 7 n/a
5G Support No Yes
Download speed Up to 300 MB/s Up to 5170 MB/s
Upload speed Up to 100 MB/s n/a
Wi-Fi version 5 6
Bluetooth version 5.4 6.0
Navigation - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC

Other

Announced June, 2024 yr December, 2024 yr
Class Low end Mid-range
Codename n/a MT6899, MT6899Z

Results

After analyzing the data, we consider MediaTek Dimensity 8400 the clear winner in this comparison.

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