36

Points
Mediatek Helio G99
Overview - Helio G99 Vs Dimensity 9400

We have created a comprehensive comparison of the recently released Helio G99 vs Dimensity 9400 SoCs by Mediatek. We've now weighed the advantages and disadvantages of these 8-core CPUs on the basis of their Geekbench, Antutu and 3DMark benchmarks with their technical specifications.

Features

Review

CPU Performance
Single and multi-core processor tests
Helio G99 17
Dimensity 9400 91
Gaming Performance
GPU performance in games and OpenCL/Vulcan
Helio G99 12
Dimensity 9400 94
Battery Life
Efficiency of battery consumption
Helio G99 79
Dimensity 9400 89
Tenzys Tech Score
Overall chip score
Helio G99 36
Dimensity 9400 91
Benchmarks

AnTuTu 9

Helio G99 Dimensity 9400
CPU 103357 600293
GPU 86376 1194784
Memory 89007 408283
UX 101683 443652
Total score 380423 2647012
Key Differences

Pros of MediaTek Dimensity 9400

  • Dimensity 9400 has 65% higher CPU clock speed than Helio G99 (3630 vs 2200 MHz).
  • Dimensity 9400 has 61.20% higher GPU clock speed than Helio G99 (1612 vs 1000 MHz).
  • Dimensity 9400 has 25.01% higher memory frequency than Helio G99 (5333 vs 4266 MHz).
  • Dimensity 9400 has 50% smaller sized transistor than Helio G99 (3 vs 6 nm).
  • Dimensity 9400 has 595.81% better AnTuTu 9 score than Helio G99 (2,647 K vs 380 K ).
  • Dimensity 9400 has latest instruction set, hence better than Helio G99.
Benchmarks

GeekBench 5

Single-Core Score

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Helio G99 543
Dimensity 9400 2876

Multi-Core Score

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Helio G99 1740
Dimensity 9400 8972

Image compression

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Helio G99 114.8
Dimensity 9400

Face detection

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Helio G99 14.3
Dimensity 9400

Speech recognition

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Helio G99 36.1
Dimensity 9400

Machine learning

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Helio G99 30.2
Dimensity 9400

Camera shooting

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Helio G99 16.4
Dimensity 9400

HTML 5

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Helio G99 1.73
Dimensity 9400

SQLite

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Helio G99 599.6
Dimensity 9400

3DMark

Stability 99%

Graphics test 8 FPS
Stability 18674%

Graphics test 56 FPS
Full list of technical specifications

Display

  • Max On-Device Display Full HD+ @120 Hz -
  • Max On-Display Resolution 2520 x 1080 -
  • Max External Display - -
  • HDR - -
  • Color Depth - -
  • Color Gamut - -
Full list of technical specifications

CPU

54%
Turbo Clock Speed

2200 MHz

90%
Turbo Clock Speed

3630 MHz

49%
Base Frequency

2000 MHz

59%
Base Frequency

2400 MHz

  • Architecture 2x 2.2 GHz – Cortex-A76
    6x 2 GHz – Cortex-A55
    1x 3.63 GHz – Cortex-X925
    3x 3.3 GHz – Cortex-X4
    4x 2.4 GHz – Cortex-A720
  • Cores 8 8
  • Instruction set ARMv8.2-A ARMv9.2-A
  • L1 cache - -
  • L2 cache - 12 MB
  • L3 cache - -
  • Process 6 nm 3 nm
  • Transistor count - -
  • TDP - 8.2 W
Full list of technical specifications

Graphics

  • GPU name Mali-G57 MC2 Mali-G925 Immortalis MP12
  • Architecture Valhall Valhall 5th gen
  • GPU frequency 1000 MHz 1612 MHz
  • Execution units 2 -
  • Shading units 32 192
  • FLOPS - 7428 Gigaflops
  • Vulkan version 1.1 1.3
  • OpenCL version 2.0 3.2
  • DirectX version 12 12
Full list of technical specifications

Memory

  • Memory frequency 4266 MHz 5333 MHz
  • Max bandwidth 17.1 Gbit/s -
  • Max Size 10 GB 24 GB
  • Memory type LPDDR4X LPDDR5X
  • Bus 2x 16 Bit 4x 16 Bit
Full list of technical specifications

Multimedia (ISP)

  • Neural processor (NPU) Yes MediaTek NPU 890
  • Storage type UFS 2.2 UFS 4.0
  • Max display resolution 2520 x 1080 3840 x 2160
  • Max camera resolution 1x 108MP, 2x 16MP 1x 320MP
  • Video capture 2K at 30FPS 8K at 60FPS, 4K at 120FPS
  • Video playback 2K at 30FPS 8K at 60FPS, 4K at 120FPS
  • Video codecs H.264, H.265, VP9 H.264, H.265, AV1, VP9
  • Audio codecs AAC, AIFF, CAF, MP3, MP4, WAV AAC LC, MP3, HE-AACv1, HE-AACv2, FLAC
Full list of technical specifications

Connectivity

  • Modem - -
  • 4G support LTE Cat. 13 LTE Cat. 24
  • 5G support No Yes
  • 5G Download Speed - -
  • 4G Download Speed - -
  • 5G Upload Speed - -
  • 4G Upload Speed - -
  • Wi-Fi 5 7
  • Bluetooth 5.2 5.4
  • Navigation GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
Full list of technical specifications

Info

Review

Review By TenzysTech

Mediatek Helio G99

CPU
17%
GPU
12%
Memory
50%
Energy efficiency and battery life
79%

MediaTek Dimensity 9400

CPU
91%
GPU
94%
Memory
62%
Energy efficiency and battery life
89%
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